Red Hat Enterprise Linux 9
Monthly
Uninitialized heap memory disclosure in gvfs's SFTP backend enables a malicious SFTP server to deterministically defeat ASLR on client systems running RHEL 6 through 10. When a user mounts a crafted SFTP share, the read_string() parser allocates a buffer for the FXP_HANDLE response but does not verify that the buffer is fully populated; the client subsequently echoes the uninitialized remainder - containing heap base pointers and the libgio load address - back to the attacker on every subsequent file-handle request. No public exploit has been identified at time of analysis, and the issue does not appear in CISA KEV, but the ASLR bypass it achieves is a high-value precursor for chained memory-corruption attacks against gvfsd-sftp.
Unauthenticated enumeration of internal PKI topology is possible in Red Hat Certificate System 9 through an unprotected REST endpoint. Any network-accessible client can issue GET /ca/rest/securityDomain/hosts and receive a structured inventory of all participating CA subsystem hosts, their roles, and security domain membership - without presenting credentials, a client certificate, or a session token. While the direct CVSS impact is rated medium (5.3), the real-world significance lies in enabling precise reconnaissance of internal PKI infrastructure that could facilitate targeted follow-on attacks against specific subsystems. No active exploitation is confirmed and no public exploit code has been identified at time of analysis.
Unauthenticated network attackers can elicit Java stack traces from Red Hat IdM's Dogtag CA REST enrollment endpoint (POST /ca/rest/certrequests) by submitting malformed requests, causing HTTP 500 responses that expose internal implementation details under CWE-209. The same error path simultaneously amplifies the CA debug log with large multi-line stack traces, creating a log-fill resource exhaustion vector that drives disk growth and I/O contention on affected RHEL 6 through 10 deployments. No public exploit has been identified at time of analysis, but the attack requires no authentication and low complexity, making it accessible to unskilled opportunistic attackers targeting IdM infrastructure.
Heap metadata corruption in the popt command-line parsing library's `poptConfigFileToString` function can be triggered by a local, low-privileged attacker who supplies specially crafted configuration file content to an affected host. Successful exploitation causes the consuming process to crash, resulting in denial of service. CVSS 2.5 (Low) reflects the strictly local, high-complexity exploitation path with no confidentiality or integrity impact; no public exploit code or active exploitation (CISA KEV) is known at time of analysis.
Heap out-of-bounds read and stack out-of-bounds access in GIMP's file-psd plugin allow an attacker to crash the application or disclose limited memory contents by convincing a user to open a specially crafted PSD image. The flaw affects GIMP as shipped in Red Hat Enterprise Linux 6 through 9 and stems from missing validation of the channel-count parameter during PSD parsing. No active exploitation has been identified; the attack requires local file delivery and deliberate user interaction, significantly constraining real-world risk.
Heap out-of-bounds read in GIMP's file-pvr plugin exposes users of Red Hat Enterprise Linux 6 through 9 to application crashes and limited heap memory disclosure when opening a crafted PVR image file. The VQ (Vector Quantization) compressed-texture decoder omits mandatory bounds validation, allowing a malicious image to read beyond allocated heap regions. Impact is primarily denial of service via crash, with a secondary low-severity information disclosure path; no public exploit code and no CISA KEV listing are associated with this issue at time of analysis.
Heap out-of-bounds read in GIMP's file-ico plugin allows a local attacker to crash GIMP or leak limited heap memory contents by delivering a specially crafted ICO image file to a victim user. Affected packages span Red Hat Enterprise Linux 6 through 9. No public exploit code or CISA KEV listing exists at time of analysis, but the user-interaction requirement (opening a malicious file) is the primary delivery mechanism and a realistic social-engineering target in image-processing workflows.
Out-of-bounds memory write in libsolv crashes RPM-based package manager tools (dnf, yum, zypper) when processing a corrupted or specially crafted .solv repository cache file. The root cause is an absent array-index bounds check on directory-id values read from compressed filelist data during .solv file rewriting - but because the out-of-bounds write stores only a fixed, non-attacker-controlled value, the vendor explicitly rules out arbitrary code execution, confining impact to denial of service. No public exploit has been identified and no active exploitation is confirmed; note that the 'RCE' metadata tag conflicts directly with the description and appears to be erroneous.
Heap out-of-bounds read in GIMP's file-iff plugin allows a local attacker to crash the application or disclose limited heap memory contents by delivering a specially crafted IFF/ILBM image file. The flaw stems from missing validation of HAM row size when the number of color planes (nPlanes) is zero, causing a size mismatch that bypasses memory bounds checking. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code has been identified at time of analysis.
Denial of service in jwcrypto's JWE.deserialize() function allows a remote unauthenticated attacker to crash any service that processes untrusted JWE tokens by submitting a malformed compact serialization containing an excessive number of period delimiters, triggering uncontrolled memory allocation and a MemoryError. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 9 and 10, OpenShift AI (RHOAI), and OpenStack Platform 16.2 as disclosed via Red Hat Bugzilla 2524147 and upstream advisory GHSA-96rv-c4vc-h4f4. No public exploit code or CISA KEV listing exists at time of analysis, and impact is confined to availability with no confidentiality or integrity exposure.
Out-of-bounds write in gdk-pixbuf's JPEG decoder affects any application on Red Hat Enterprise Linux 6 through 10 that renders JPEG images containing chunked ICC profile markers. When ICC profile parsing encounters an error, stale size metadata persists after the profile buffer is freed; a subsequent allocation within the same decode operation then writes beyond buffer boundaries, crashing the application. No active exploitation has been identified (no CISA KEV listing), and no public exploit code is known at time of analysis, but the availability-only impact and user-interaction requirement make this a realistic denial-of-service risk in desktop and server image-processing contexts.
Stack-based denial of service in GIMP's Seattle FilmWorks (SFW) image plugin crashes the application when a crafted SFW file triggers an unbounded variable-length array allocation on the stack. The flaw affects all GIMP versions per the GNOME CPE string and is confirmed across Red Hat Enterprise Linux 6 through 9. An attacker who can deliver a malicious SFW file to a user can reliably crash the GIMP process with no code execution or data exposure; no public exploit has been identified at time of analysis.
Heap out-of-bounds read in GIMP's file-xwd plugin allows a crafted XWD image file to trigger an application crash or leak partial heap memory contents into the rendered image output. Users running GIMP on Red Hat Enterprise Linux 6 through 9 are affected when they open a malicious XWD file; the plugin fails to cross-validate image width and bytes-per-line parameters against the allocated buffer size, permitting an out-of-bounds read. No public exploit is identified at time of analysis and the vulnerability is not listed in CISA KEV, placing real-world urgency in the low-to-moderate range.
Resource exhaustion via crafted SASL UNBIND in 389 Directory Server (389-ds-base) allows a remote authenticated attacker to stall connections and deny LDAP service to legitimate users. Affected deployments span Red Hat Directory Server 11, 12, and 13, plus 389-ds-base as packaged across RHEL 6 through 10. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 6.5 rating (AV:N/AC:L/PR:L) indicates low-complexity network exploitation requiring only a low-privilege LDAP bind - a realistic bar in any environment with shared directory users.
Stack exhaustion and a bounded memory over-read in GIMP's file-pix (ESM) plugin allow a crafted PIX image to crash the application and leak 21 bytes of stack memory into an intermediate file. Users running GIMP on Red Hat Enterprise Linux 6 through 9 are affected when opening untrusted PIX format images. No public exploit code and no active exploitation (CISA KEV) have been identified at time of analysis, though the DoS impact is reliable and the delivery vector - a malicious image file - is realistic for desktop users.
Improper certificate validation in JSS (Java Security Services) allows the JSSTrustManager class to accept CA certificates from the NSS database that lack TRUSTED_CA trust flags, meaning certificates never explicitly designated as trust anchors can still be used to anchor TLS chains. In non-default deployments where certificate revocation checking has been disabled, this creates a viable path for a man-in-the-middle attacker to forge certificates accepted by PKI client connections, with high confidentiality and low integrity impact. No public exploit has been identified at time of analysis, and the AC:H CVSS rating reflects the meaningful attack complexity - MITM positioning plus a specific non-default configuration must both be present.
Denial of service in FreeIPA's ipa-enrollment SLAPI plugin allows any authenticated LDAP client to crash the 389 Directory Server by sending a malformed extended operation. The flaw (CWE-476, null pointer dereference) is triggered by omitting the request value for the JOIN_OID in the ipa-enrollment extended operation, causing the server to dereference a null pointer and crash. No public exploit or active exploitation has been identified at time of analysis; however, the low attack complexity and network-accessible vector make this a credible threat against any RHEL Identity Management deployment.
Resource exhaustion in FreeIPA's OTP key processing path allows any low-privilege authenticated domain user to degrade the IPA authentication service. By submitting an oversized One-Time Password key, the user triggers an unbounded decode/re-encode cycle (CWE-770) that consumes excessive CPU and memory, degrading availability for all dependent systems and users. No public exploit code exists at time of analysis, and this CVE is not listed in CISA KEV; however, the AV:N/PR:L CVSS vector means any valid domain account on a network-accessible FreeIPA instance is sufficient to trigger the condition.
Integer truncation in libsoup's SoupServer Range-header comparator silently drops byte ranges from HTTP 206 Partial Content responses when the target resource exceeds approximately 2 GB. The sort_ranges() function in soup-message-headers.c narrows a 64-bit offset subtraction to a 32-bit int return value, inverting the comparator sign whenever offsets differ by more than INT_MAX, causing incorrect range sorting and silent omission of content. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation requires network access to a SoupServer instance serving files larger than ~2 GB.
Heap overread in swtpm's SWTPM_NVRAM_CheckHeader() function allows local low-privileged users to crash the swtpm daemon and leak heap memory contents to system logs on Red Hat Enterprise Linux 8, 9, and 10. The root cause is a classic sizeof-pointer vs. sizeof-struct confusion: the guard compares buffer length against sizeof(bh) (pointer width, 8 bytes on 64-bit) rather than sizeof(*bh) (actual struct size), permitting undersized buffers to bypass validation and triggering a 2-byte heap overread on 64-bit systems or 6 bytes on 32-bit. No public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds memory read in BlueZ's AVRCP implementation allows a physically proximate attacker - within Bluetooth radio range - to crash the bluetoothd daemon and potentially leak heap memory contents by sending a malformed GetFolderItems response. The flaw resides in parse_media_element() and parse_media_folder(), which fail to validate packet length fields before reading. Exploitation requires the victim to interactively pair with the attacker-controlled malicious Bluetooth device. No public exploit code or CISA KEV listing has been identified at time of analysis.
Denial of service in dnsmasq's DNSSEC validation code allows an attacker who operates any DNSSEC-signed authoritative zone to permanently hang the dnsmasq process with a single crafted DNS response, killing all DNS resolution for every client served by that instance. Affected deployments include dnsmasq as packaged in Red Hat Enterprise Linux 6 through 10 and Red Hat OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis; the assigned CVSS score of 4.4 (Medium) carries a notable inconsistency between the stated local attack vector and the network-delivered attack mechanism described.
Undertow's HTTP response header writing path silently truncates 16-bit Unicode characters to 8-bit bytes via a narrowing cast in the `writeString()` method, enabling remote unauthenticated attackers to inject ASCII control characters or special symbols into response headers when an application passes unsanitized user-controlled input into those headers. Affected Red Hat distributions include RHEL 8/9/10, JBoss EAP 7, Red Hat Build of Apache Camel for Spring Boot 4, and Red Hat Single Sign-On 7, as reported by Red Hat via Bugzilla #2516038. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Privileged file corruption and denial of service in sblim-sfcb (Small Footprint CIM Broker) on Red Hat Enterprise Linux 6 through 10 is achievable by a local low-privileged attacker exploiting a symlink-based race condition during privileged instance migration. The SFCB daemon writes to a temporary file in /tmp without atomic safety guarantees, allowing an attacker who repeatedly races a symbolic link into place to redirect that privileged write to an arbitrary file path. No public exploit has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Out-of-bounds memory read in sblim-sfcb's provider-manager IPC message parser allows a local low-privileged attacker to crash the provider-manager process, causing denial of service and potentially leaking limited adjacent memory contents. The vulnerability stems from unsafe deserialization of attacker-controlled IPC messages without adequate boundary validation, affecting sblim-sfcb as shipped across Red Hat Enterprise Linux versions 6 through 10. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained to local system access.
Insecure temporary file creation in sblim-cmpi-base provider registration scripts exposes Red Hat Enterprise Linux 6 through 10 to a local symlink attack, enabling a low-privileged user to redirect privileged file writes to arbitrary paths. When registration scripts execute under elevated (root) privileges, an attacker who pre-positions a symlink in a world-writable directory can cause those scripts to overwrite root-owned files, disrupting system services or integrity. No public exploit code has been identified at time of analysis, and exploitation requires both local access and favorable timing, but the integrity and availability impact on a compromised host are rated high by the vendor.
The iscsiuio DHCP parser in open-iscsi crashes when processing maliciously crafted DHCP reply packets, disrupting iSCSI storage connectivity or network boot on affected hosts. An integer underflow (CWE-191) in the IPv4/UDP DHCP reply parsing path triggers an out-of-bounds read, causing the iscsiuio process to terminate; impact is limited to availability with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and the adjacent-network attack vector constrains the realistic attacker population to the same Layer-2 segment as the target.
Integer underflow in open-iscsi's iscsiuio daemon crashes the process when parsing malformed DHCPv6 Advertise packets with a truncated UDP length field, disrupting iSCSI storage connectivity. Systems running Red Hat Enterprise Linux 9 and 10 with iscsiuio actively engaged in a DHCPv6 exchange are exploitable by any unauthenticated attacker on the same adjacent network segment. No active exploitation (CISA KEV) or public proof-of-concept has been identified at time of analysis; real-world impact is highest in shared or multi-tenant storage network environments where adjacency cannot be guaranteed.
Denial of service in open-iscsi's iscsiuio daemon allows an unauthenticated attacker on the same local network segment to render the daemon permanently unresponsive by sending a single crafted ICMPv6 Router Advertisement carrying a zero-length option, triggering an infinite loop and sustained CPU exhaustion. Affected deployments include Red Hat Enterprise Linux 9 and 10 systems where iscsiuio is active for iSCSI hardware offload. A secondary out-of-bounds read risk exists when a short IPv6 payload is processed, though no memory corruption or data exposure has been confirmed from available intelligence; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer underflow in GStreamer's avidemux element allows a remote unauthenticated attacker to trigger heap out-of-bounds read and write, heap memory disclosure, and application crash by delivering a crafted AVI file containing a malformed FUJIFILM strd chunk. The gst_avi_demux_parse_strd() function decrements its remaining-length counter by fixed offsets without bounds checking, causing unsigned integer wraparound for payloads of exactly 106 or 107 bytes. Because avidemux is auto-plugged by GStreamer's high-level components (playbin, decodebin, gst-discoverer), any application that opens or previews a media file - including GNOME Files, Nautilus, Totem, and many others - can trigger the vulnerability without user awareness. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available in gst-plugins-good 1.28.6.
Out-of-bounds read in GStreamer's avidemux plugin (gst-plugins-good) allows a remote, unauthenticated attacker to crash media-processing applications and potentially leak memory contents by supplying a crafted AVI file. The flaw resides in gst_avi_demux_riff_parse_vprp(), where the count of video field descriptors is derived by dividing remaining buffer size by an attacker-controlled vprp->fields value rather than the struct size, causing the parser to treat more descriptors as valid than the buffer holds. User interaction is required to trigger the bug (the victim must open or stream the malicious AVI via playbin or decodebin), and the primary confirmed impact is denial of service; limited information disclosure is also possible. No public exploit or CISA KEV listing has been identified at time of analysis.
Use-After-Free vulnerabilities in the GNU linker (ld) component of binutils crash the linker process when processing crafted object or archive files during LTO-enabled linking on Red Hat Enterprise Linux systems. The flaws exist at three distinct dereference points in add_archive_element() in ld/ldmain.c, where plugin_maybe_claim() frees the BFD object but the caller retains dangling pointers that are subsequently accessed. The attack surface is confined to build-time environments, with the primary realistic threat being a supply chain attack introducing a malicious object file into CI/CD pipelines or developer build systems; no public exploit code or active exploitation has been confirmed at time of analysis.
Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash the directory service with a single crafted BIND request. The flaw resides in `get_ldapmessage_controls_ext()`, which frees a parsed controls array when rejecting an unknown critical Session Tracking control but fails to clear the corresponding SLAPI_REQCONTROLS pblock slot - causing operation teardown to free the same pointer a second time. Affected deployments include Red Hat Directory Server 11 through 13 and the 389-ds-base package across all supported RHEL versions (6-10). No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; the CVSS AC:H rating reflects that reliable heap exploitation requires specific memory layout conditions rather than a trivially repeatable one-shot crash.
HTTP request smuggling in Undertow's ChunkReader component enables unauthenticated remote attackers to inject out-of-sync requests, bypassing upstream security controls such as authentication layers or reverse-proxy ACLs. Affected deployments include JBoss EAP 7, WildFly, Red Hat Enterprise Linux 8/9/10, Red Hat Data Grid 8, Red Hat Fuse 7, Red Hat Single Sign-On 7, and several Apache Camel-based Red Hat products. No confirmed active exploitation or public proof-of-concept has been identified at time of analysis; the CVSS 5.3 Medium score reflects limited direct impact, though real-world risk in proxy-fronted architectures is meaningfully higher than the score alone suggests.
Cleartext credential exposure in Red Hat insights-core allows SSSD LDAP bind passwords (ldap_default_authtok) and Pacemaker fence device credentials to be included unredacted in diagnostic archives uploaded to console.redhat.com. The redaction layer uses a naive string-match on the literal key name 'password', leaving non-standard credential field names - such as those used by SSSD and Pacemaker - completely unprotected before archive upload. With CVSS PR:L, a threat actor with authenticated access to an organization's Red Hat Insights console can retrieve these cleartext credentials from stored archives. No public exploit identified at time of analysis and not confirmed in CISA KEV.
NULL pointer dereference in the shim application's dp.c library exposes Red Hat Enterprise Linux 7, 8, and 9 systems using UEFI Secure Boot to a local denial-of-service condition. An attacker with high local privileges and the ability to interact with the shim boot path can trigger the missing NULL pointer check, potentially disrupting the boot process. No public exploit code has been identified at time of analysis, and the low CVSS score of 3.9 reflects the constrained attack prerequisites, though the changed scope (S:C) signals that the impact crosses from the shim component into the broader boot environment.
Sensitive guest disk contents are exposed to any local user on Red Hat Enterprise Linux KVM hosts due to `qemu-img` creating new volume image files with world-readable permissions during libvirt storage clone or convert operations. Affected platforms span RHEL 6 through 10 and RHEL for Nvidia 26. No public exploit code has been identified and this vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at time of analysis, but the CVSS C:H rating reflects full guest disk exposure to a low-privileged local attacker.
Signed integer overflow in GIMP's file-fli plugin causes application crashes when processing maliciously crafted FLI animation files, resulting in denial of service. The flaw affects GIMP as packaged on Red Hat Enterprise Linux 6 through 9, where incorrect multiplication of image width and height during buffer size calculation can overflow a signed integer, producing an invalid allocation. No public exploit code or active exploitation has been identified; impact is strictly limited to availability, with no confidentiality or integrity consequences.
Missing authorization on CleanAllRUV and Abort CleanAllRUV LDAP extended operations in 389 Directory Server (Red Hat Directory Server 11-13) allows unauthenticated remote attackers - when the default anonymous access setting is active - to manipulate replication metadata, purge changelog records, and abort administrator-initiated cleanup tasks. The affected operations are replication-maintenance primitives that bypass the authorization layer entirely (CWE-862), meaning no account or session is required under default configuration. No public exploit code or active exploitation in CISA KEV has been identified at time of analysis, but the network-accessible, zero-authentication attack surface in a widely deployed enterprise directory server makes this a notable availability and integrity risk.
Integer overflow in p11-kit's RPC message parser on 32-bit systems allows a local attacker, or any principal with access to a reachable RPC channel, to crash the p11-kit process via a heap out-of-bounds write, resulting in Denial of Service. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.
SELinux label manipulation via TOCTOU race condition in the policycoreutils fixfiles script allows a local low-privileged attacker to corrupt SELinux mandatory access control labels on arbitrary system files, including security-critical targets such as /etc/shadow. The flaw affects fixfiles when run in relabel or restore mode across all supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained by both a required race condition win and the need for an administrator to actively invoke fixfiles.
Persistent denial of service in libkcapi's AIO interface allows a local attacker to permanently hang an affected application thread by exploiting improper error-state handling in _kcapi_aio_read_all(). Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4 - all environments where applications leverage libkcapi's asynchronous cryptographic operations. No public exploit code or active exploitation has been identified at time of analysis; the high attack complexity (AC:H) and local-only attack vector substantially limit real-world risk beyond targeted or insider-threat scenarios.
IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.
Persistent denial of service in dhcp-server (dhcpd) on Red Hat Enterprise Linux 6 through 9 is triggered via a crafted OMAPI lease creation request containing an overly long InfiniBand MAC address, overflowing a buffer in `print_hw_addr()` and crashing the dhcpd daemon in a way that prevents automatic recovery. The official CVSS score of 4.9 with PR:H reflects the assumption that TSIG authentication guards the OMAPI port; however, the description explicitly highlights that TSIG is optional and often absent, reducing the realistic exploitation barrier to unauthenticated network access. No confirmed active exploitation (KEV) or public proof-of-concept exists at time of analysis.
Stack-based out-of-bounds read in stunnel's s_vlog logging function allows remote unauthenticated attackers to crash the service by sending protocol inputs that generate log messages exceeding 1024 bytes via vsnprintf. The primary impact is service disruption (availability), with a limited integrity impact in corner cases where trailing newline characters in the stack buffer can be overwritten with null bytes. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
SSRF bypass in stunnel 5.79 and earlier allows authenticated SOCKS proxy clients to circumvent intended localhost access restrictions by supplying IPv4-mapped IPv6 addresses (e.g., ::ffff:127.0.0.1) or unspecified addresses (0.0.0.0, ::) in proxy requests. Exploitation reaches loopback-bound services on the stunnel host - services deliberately isolated from external network access - potentially exposing internal APIs, administrative interfaces, or other localhost-only endpoints. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Off-by-one memory corruption in popt's poptStuffArgs function allows a local low-privileged attacker to overwrite adjacent memory and potentially execute arbitrary code within any host application that unsafely processes the corrupted argument data. All supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4 ship the affected library. No public exploit code has been identified and no CISA KEV listing exists; exploitation requires high-complexity triggering conditions, making this a routine patch priority rather than an emergency response item.
Uninitialized heap memory disclosure in SSSD's NSS responder exposes cached directory data and heap layout to local authenticated users on RHEL 6 through 10 and OpenShift Container Platform 4. The sss_nss_protocol_fill_initgr() function pre-allocates a reply buffer sized for all group entries but fails to shrink it when groups are skipped, causing uninitialized heap bytes to be included in the response transmitted back to the requesting client. No public exploit code has been identified at time of analysis, and this is not listed in CISA KEV; however, leaked heap addresses may assist in chained attacks targeting ASLR bypass in sssd_nss.
GNU tar's incremental restore path contains a TOCTOU race condition in dumpdir 'X' rename handling, allowing a local attacker with write access to a backed-up directory to redirect file operations outside the intended extraction root during a privileged restore. Successful exploitation can result in arbitrary file creation, rename, or overwrite - enabling privilege escalation on systems running Red Hat Enterprise Linux 6 through 10 and Red Hat Hardened Images. No public exploit is identified at time of analysis, and no CISA KEV listing exists; the CVSS score of 4.4 reflects the constrained attack prerequisites including a required race window and administrator-initiated restore.
Authentication bypass in 389 Directory Server (Red Hat Directory Server 11-13) allows a network-connected user holding valid credentials for an administratively locked account to retain an authenticated LDAP session, defeating account-lock as an access-revocation control. The SASL PLAIN bind handler installs connection-level authenticated state before executing the account-lock check; when the lock check fails, only the error is returned to the client while the internal authenticated state on that connection persists unrevertd. No public exploit has been identified at time of analysis and no CISA KEV listing exists, but the real-world impact is highest in incident-response and employee-offboarding scenarios that rely on directory lock as the primary revocation mechanism.
GNU tar's --one-top-level extraction mode fails to confine hardlink targets to the designated top-level directory, allowing a crafted archive to plant hardlinks that escape the intended extraction boundary. When combined with a preexisting symbolic link already present under the working directory, an attacker who can induce a victim to extract a malicious archive may read or write files outside the intended extraction scope on systems running affected RHEL versions (6 through 10) and Red Hat Hardened Images. No public exploit has been identified at time of analysis, and exploitation requires both user interaction and a specific environmental pre-condition, keeping real-world risk moderate despite GNU tar's ubiquitous deployment.
Out-of-bounds read in SSSD's NSS responder allows a local user with standard privileges to crash the SSSD process by sending a crafted GETHOSTBYADDR request, causing system-wide denial of authentication and name resolution services. The vulnerable function `sss_nss_protocol_parse_addr()` fails to validate the `addrlen` field against the actual remaining packet body size, enabling heap over-read and process termination. No public exploit code or active exploitation has been identified at time of analysis, and this vulnerability is not listed in CISA KEV.
Heap-based out-of-bounds write in GIMP's PAA (Paint Shop Pro Array) file format plugin allows a remote attacker to potentially execute arbitrary code on a victim's system by tricking the user into opening a specially crafted PAA image. The flaw resides in the decode_lzss() decompression function, which writes data beyond the bounds of the allocated heap buffer, enabling heap metadata corruption. No public exploit or CISA KEV listing exists at time of analysis, but the RCE-tagged impact and buffer-write primitive make this a higher-severity risk than the CVSS 5.5 score suggests; the CVSS impact metrics reflect only availability (A:H) while the description and tags indicate arbitrary code execution potential - a notable discrepancy to investigate.
Stack-based buffer overflow in GIMP's file-png plugin on Red Hat Enterprise Linux 6 through 9 causes the application to crash when a user opens a crafted Animated PNG (APNG) image containing an oversized tRNS chunk, resulting in a Denial of Service limited to the affected user session. Exploitation requires local file access and active user interaction - a remote attacker would rely on social engineering (phishing, malicious download) to deliver the file. No active exploitation has been confirmed by CISA KEV, no public exploit code is identified at time of analysis, and EPSS data is unavailable in source intelligence.
Insecure file permissions in ansible-collection-redhat-leapp expose PostgreSQL backup archives to local non-root users on managed RHEL 9 and RHEL 10 nodes. When the `leapp_old_postgresql_data` remediation option is invoked with elevated privileges, the resulting backup archive is written with world-readable or group-readable permissions (CWE-732), allowing any local non-root user on that managed node to extract the full contents of the archived PostgreSQL data. No public exploit has been identified at time of analysis, and exploitation requires local authenticated access to the managed node.
The ansible-collection-redhat-leapp package exposes Ansible controller-side sensitive files to attacker-controlled managed nodes through a manipulated Leapp upgrade report. An attacker who has already obtained privileged write access to a managed node's Leapp report can craft malicious report content that, when an operator executes a specific remediation task, causes the Ansible controller to read and copy its own local files - including private keys and credentials - to the attacker-controlled managed node. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog; however, the CVSS 3.1 score of 6.2 reflects real-world risk limited by the high privilege prerequisite and required operator interaction.
Denial of service in Samba's Kerberos KDC password change (kpasswd) service allows authenticated remote attackers to crash the KDC process by submitting specially crafted, malformed ASN.1-encoded password change requests. The server miscalculates the structure size of the incoming request and reads up to six bytes beyond the end of the allocated buffer; when this read strikes unmapped memory, the KDC process terminates rather than simply failing gracefully. No public exploit has been identified and no CISA KEV listing exists, but the disruption of a KDC in an Active Directory or Samba domain environment carries significant operational impact since authentication for the entire domain depends on KDC availability.
Samba's internal DNS server inserts unauthenticated TKEY registration requests into the TKEY name cache before rejecting them, allowing a remote unauthenticated attacker to exhaust the cache by flooding it with arbitrary TKEY names. Eviction of legitimate cache entries blocks TSIG-authenticated DNS query processing, producing a targeted denial of service against Active Directory environments relying on Samba's built-in DNS backend. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available from both Samba upstream and Red Hat.
Server-side request forgery in Dogtag PKI's ACME responder enables unauthenticated ACME account holders to direct the certificate server to make arbitrary HTTP GET requests to internal network addresses. The validator incorrectly accepts IP address literals as valid DNS identifiers and follows HTTP redirects without enforcing RFC-compliant public-address filtering, allowing internal network reconnaissance. When the InMemory database backend is in use, the response body returned by internal services is exposed to the attacker through ACME challenge error messages, compounding the confidentiality impact. No public exploit code or active exploitation has been identified at time of analysis.
Path traversal in the Performance Co-Pilot (PCP) pmproxy logger servlet on Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 permits unauthenticated remote attackers to create arbitrary files and directories on the host filesystem by supplying a crafted hostname value in requests to the service. The primitive is write-only - no file contents can be read - but an attacker can abuse it to corrupt directory structures or exhaust disk space, leading to denial of service. No public exploit code has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog.
Remote unauthenticated denial of service and memory disclosure in the Performance Co-Pilot (PCP) pmproxy service affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. An out-of-bounds read (CWE-125) in the pmLogLoadInDom() function can be triggered by a specially crafted network request, causing the pmproxy process to crash and potentially leaking sensitive data from process memory. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Out-of-bounds heap read in GNU Binutils linker when processing 32-bit XCOFF files allows local attackers to disclose heap memory and cause denial of service. Affects Red Hat Enterprise Linux 6 through 10, Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation identified at time of analysis; EPSS data unavailable.
Authorization bypass in Red Hat Certificate System's CA renewal path allows an authenticated user to renew a certificate belonging to a different realm without the required realm-based authorization check. Affects versions 9, 10, and 11 of the Certificate System on Red Hat Enterprise Linux 6 through 10. No evidence of active exploitation or public exploit code exists at the time of analysis, and EPSS probability is low (0.21%).
Local information disclosure in accountsservice on Red Hat Enterprise Linux allows systemd-homed users to read arbitrary files via the SetIconFile handler. A proof-of-concept exists, but exploitation requires a local account managed by systemd-homed, limiting impact
Denial of service in dbus-broker allows a local attacker to crash the user session bus broker when file descriptor limits are exhausted. Affected products include Red Hat Enterprise Linux 9/10, Red Hat OpenShift Container Platform 4, and Red Hat Hardened Images where dbus-broker is deployed. No active exploitation or public exploit code is known, and EPSS indicates low exploitation probability (0.11%).
Red Hat Certificate System (RHCS) 9 is susceptible to a resource exhaustion denial-of-service condition triggered by unauthenticated remote attackers flooding its TLS-exposed HTTP endpoint. Repeated requests cause the underlying Java process to exhaust available heap memory, resulting in an Out of Memory crash that takes the certificate authority service offline. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of authentication requirements make this a realistic threat to any internet- or intranet-exposed RHCS deployment.
Out-of-bounds heap read in gdk-pixbuf's ICO parser exposes heap memory content through rendered image output, affecting Red Hat Enterprise Linux 6 through 10. When processing a crafted ICO file whose pixel indices exceed the defined palette size, the library reads beyond the palette array boundary - heap bytes are treated as palette entries and rendered as RGB pixel values in the output image, enabling an attacker to extract heap content by analyzing the rendered result. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, but server-side image processing pipelines that return rendered output to untrusted callers represent a realistic exposure path.
Format string vulnerability in GNU nano's multi-buffer error message handling allows a local low-privileged attacker to cause stack information disclosure, denial of service via crash, or potentially achieve arbitrary memory writes. The flaw (CWE-134) is triggered when a user opens multiple files at startup, one of which carries a specially crafted name containing printf format specifiers and another triggers an ALERT-level error - causing nano to misinterpret the filename as a format string. Reported by Red Hat and scoped to RHEL 6 through 10 and OpenShift Container Platform 4, no public exploit or CISA KEV listing exists at time of analysis.
Symlink-following vulnerability (CWE-59) in systemd-tmpfiles allows a local, low-privileged user to redirect privileged file write operations to an attacker-controlled path on affected Red Hat Enterprise Linux systems. The flaw resides in the path resolution logic within chase.c, where a safety check incorrectly treats all transitions away from the root user as inherently safe - failing to detect attacker-placed symlinks at tmpfiles.d target path components. Exploitation is constrained by high attack complexity requiring a specific non-default tmpfiles.d configuration, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap buffer overflow in Red Hat Directory Server (389-ds-base) exposes LDAP services to remote unauthenticated denial of service or potential arbitrary memory write via malformed DN input. When a Distinguished Name containing a legacy-quoted value is processed, the server fails to close the associated heap allocation, permitting a subsequent operation to reference the same memory pointer - a classic heap confusion primitive. No public exploit has been identified at time of analysis, and this vulnerability is not listed in CISA KEV, though the network-accessible unauthenticated attack surface warrants prompt patching for any externally reachable Directory Server deployment.
Off-by-one heap out-of-bounds read in the BlueZ SBC (Sub-Band Coding) frame decoder allows a Bluetooth-adjacent unauthenticated attacker to leak a single byte of heap memory by streaming a crafted audio payload. Red Hat Enterprise Linux 7 through 10 are confirmed affected via the bundled sbc library. No public exploit code exists and this vulnerability is not listed in CISA KEV, making active exploitation unlikely; the impact is constrained to minor information disclosure of a single heap byte.
Unbounded memory growth in libssh's SFTP client allows a malicious server to exhaust client-side memory by sending responses for unknown request IDs, resulting in a denial-of-service condition against any application using libssh for SFTP operations. Affected deployments include libssh as packaged in Red Hat Enterprise Linux 8, 9, 10, and Red Hat Hardened Images. No public exploit code and no active exploitation have been identified at time of analysis; the CVSS score of 5.3 (Medium) reflects the limited availability impact and the requirement that a victim client connect to an attacker-controlled server.
Stack-based buffer overflow in rpcbind's rpcinfo client utility crashes the rpcinfo process when a user or administrator runs `rpcinfo -s` against a malicious or compromised rpcbind endpoint. The flaw is in the `rpcbdump()` short-mode function, which writes version number data from a remote RPCBPROC_DUMP reply into a fixed-size stack buffer without bounds validation. Affected deployments span Red Hat Enterprise Linux 8, 9, and 10 as well as OpenShift Container Platform 4; no public exploit has been identified and this vulnerability does not appear in the CISA KEV catalog, placing real-world urgency in the medium tier despite the network-accessible attack vector.
Memory exhaustion in libssh's SFTP server subsystem allows authenticated remote clients to degrade or crash the service by sending SSH_FXP_READ requests specifying an arbitrarily large read length, causing the server to allocate unbounded memory for each request. The CVSS vector (PR:L) confirms exploitation requires valid credentials, limiting the attack surface to authenticated SFTP users. No public exploit code and no CISA KEV listing have been identified at time of analysis, though the low complexity and network-accessible attack path make this a realistic insider or credential-abuse scenario.
Signal misdelivery in libssh's ProxyCommand handling allows a low-privileged local user to trigger a local denial of service affecting their entire accessible process tree. When fork() fails during ProxyCommand execution, the error return value of -1 is stored unchecked as a child process ID; at cleanup, libssh signals PID -1, which Linux interprets as a broadcast to all processes the caller has permission to signal. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA's KEV catalog, but the CVSS scope-changed metric (S:C) confirms that impact extends beyond the libssh component itself to co-located user processes.
CPU exhaustion via malformed SSH channel negotiation in libssh allows an authenticated remote peer to cause indefinite server-side looping and denial of service. By advertising a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, the attacker forces subsequent channel writes into an infinite loop, fully consuming CPU on the affected host. This affects libssh as shipped in Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images; no public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds heap read in libssh exposes small amounts of server memory during GSSAPI key exchange, exploitable by remote unauthenticated attackers. When a client submits a Curve25519 public key shorter than the expected 32 bytes during server-side GSSAPI key exchange, libssh copies the key without validating its length, triggering a read beyond the intended buffer boundary. No public exploit has been identified at time of analysis; exploitation is constrained to servers with GSSAPI key exchange explicitly enabled, which is a non-default configuration.
Sensitive memory exposure in kronosnet (versions <=1.34) allows a local attacker to recover live cluster encryption keys from freed heap memory following cryptographic configuration changes. Affected deployments include Red Hat Enterprise Linux 8, 9, 10, and OpenShift Container Platform 4, where kronosnet underpins the high-availability networking stack. Successful key recovery enables full decryption of cluster communications or malicious packet injection capable of destabilizing HA cluster quorum - no public exploit code identified and no CISA KEV listing at time of analysis.
ACL bypass in kronosnet (versions ≤ 1.34) allows remote unauthenticated attackers to inject arbitrary data packets into cluster communication channels under a specific dual-condition deployment configuration. By spoofing a valid link ID in crafted network frames, an attacker circumvents the ACL subsystem entirely, potentially causing data corruption or service instabilities in clustering stacks shipped with Red Hat Enterprise Linux 8, 9, 10 and OpenShift Container Platform 4. No public exploit code and no active exploitation have been identified at time of analysis.
Stack-based buffer overflow in the rpcinfo client utility (part of the rpcbind package) crashes the client process when querying a malicious or compromised rpcbind server using the `-l` flag. Address data returned by the server is copied into a fixed-size stack buffer without bounds validation (CWE-121), enabling a server-side attacker to trigger a denial of service against any administrator or script that runs `rpcinfo -l` against their controlled endpoint. No public exploit identified at time of analysis, and no CISA KEV listing; impact is confined to client-side availability with no confidentiality or integrity exposure.
Out-of-bounds memory corruption in kronosnet's packet reassembly engine (versions ≤ 1.34) enables a remote, unauthenticated network attacker to crash the kronosnet process or cause heap corruption by transmitting malformed fragmented packets carrying invalid sequence numbers. Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, and Red Hat OpenShift Container Platform 4, making this relevant to HA clustering infrastructure that depends on kronosnet for inter-node communication via Corosync or Pacemaker. No public exploit code and no active exploitation have been identified at time of analysis, though the network-accessible, no-privilege-required attack path elevates operational risk for clustered environments despite the AC:H complexity rating.
Unvalidated chown in Samba's pam_winbind module allows a local user with narrow sudo delegation to transfer ownership of the root filesystem directory to a system account, causing system-wide denial of service on Red Hat Enterprise Linux 6 through 10. When mkhomedir is enabled and a system account has its home directory set to '/', any PAM-triggered authentication event run as that account via sudo invokes the chown without path sanitization. The resulting ownership change breaks SSH, sudo, and package-manager functionality, though the 0555 permissions on RHEL prevent write access escalation, confining the impact to high-severity availability loss. No public exploit or CISA KEV listing is identified at time of analysis.
Out-of-bounds read in libsoup's multipart processing exposes applications on Red Hat Enterprise Linux 6 through 10 to remote denial-of-service or partial memory disclosure. The flaw resides in soup_multipart_input_stream_read_headers() where oversized or malformed multipart boundary strings are not adequately size-validated, allowing an attacker to cause the stream reader to exceed its allocated buffer. A proof-of-concept exists per SSVC data, the attack is rated automatable, and no active exploitation is confirmed in CISA KEV - placing this in a monitored-but-actionable risk tier rather than an emergency response category.
Memory leak in libsoup's HTTP/2 implementation allows a remote, unauthenticated attacker to incrementally exhaust heap memory and crash the affected application through a sustained out-of-memory condition. Affected deployments include any application linking libsoup on Red Hat Enterprise Linux 6 through 10 that handles HTTP/2 connections from untrusted peers. No public exploit code has been identified and CISA has not listed this in KEV; however, the network-accessible attack surface with no authentication requirement makes it relevant for internet-facing services using libsoup. Notably, the provided CVSS vector (C:H/I:N/A:N) is internally inconsistent with the DoS-only description - the correct impact metrics should reflect Availability, not Confidentiality, and this discrepancy is flagged in the risk assessment.
Timing side-channel exposure in Red Hat Directory Server's PBKDF2-SHA256 password verification allows a remote unauthenticated attacker to send repeated LDAP bind requests and statistically infer partial hash information by measuring response-time differences caused by non-constant-time memcmp() comparisons. Affected deployments span Red Hat Directory Server 11 through 13 and the 389-ds-base package shipped across RHEL 6 through 10. No public exploit identified at time of analysis, and practical exploitation is acknowledged to be extremely difficult due to the computational overhead inherent in PBKDF2 key stretching, which substantially degrades the timing signal.
Attribute encryption in the 389-ds-base LDBM backend exposes a cryptographic design flaw affecting Red Hat Directory Server 11, 12, and 13 across all supported RHEL releases (6 through 10). The LDBM backend applies a static, hardcoded initialization vector (IV) for both AES-CBC and 3DES-CBC encryption of directory attribute values, meaning that two entries storing identical plaintext for an encrypted attribute will always produce identical ciphertext blocks - a classic ciphertext equality oracle. An attacker with privileged filesystem-level read access to the LDBM database files can exploit this to determine whether any two encrypted attribute values are identical, leaking relational information about the directory without recovering plaintext. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
GStreamer's webrtcbin component accepts remote SDP offers and answers that are missing the required a=fingerprint attribute due to an inverted boolean logic check in _check_sdp_crypto(), undermining the DTLS certificate fingerprint binding that protects WebRTC media streams from interception. An attacker already positioned as a man-in-the-middle on the WebRTC signaling channel can strip the a=fingerprint attribute from SDP messages, which the vulnerable code then incorrectly accepts, allowing the attacker to substitute their own DTLS certificate and intercept or tamper with encrypted media. No public exploit code exists and no CISA KEV listing has been issued; however, the flaw is architecturally significant because it silently voids a key WebRTC security guarantee rather than causing an obvious crash.
Heap-buffer-overflow in 389 Directory Server's DN normalization routine allows an unauthenticated remote attacker to corrupt heap memory and likely crash the LDAP service. The flaw triggers when the server processes an LDAP operation - such as a search request - whose base DN contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), causing an out-of-bounds write during RDN attribute-value pair sorting. Per the confirmed CVSS vector (PR:N), no authentication is required; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer overflow in GIMP's PlayStation TIM image loader crashes the plug-in when processing a maliciously crafted TIM file, resulting in denial of service. The flaw affects GIMP as packaged on Red Hat Enterprise Linux 6 through 9, where the TIM loader multiplies two 16-bit unsigned short values (num_colors × num_cluts) without bounds checking, producing a 32-bit overflow that corrupts CLUT size calculation and triggers an abort. No public exploit code has been identified at time of analysis, and exploitation requires user interaction to open a crafted file, limiting real-world impact to targeted social engineering scenarios.
Two off-by-one errors in FreeIPA's ipa-otpd daemon expose RHEL 6 through 10 deployments configured with an external OAuth2/OIDC Identity Provider to out-of-bounds memory access during the device authorization flow. An attacker who controls or can man-in-the-middle the configured IdP endpoint can serve an oversized authorization response, triggering CWE-787 writes or reads one byte past a fixed-size buffer boundary. The most probable outcome is denial of service of the ipa-otpd daemon; no public exploit has been identified and the vulnerability is not listed in the CISA KEV catalog.
Uninitialized heap memory disclosure in gvfs's SFTP backend enables a malicious SFTP server to deterministically defeat ASLR on client systems running RHEL 6 through 10. When a user mounts a crafted SFTP share, the read_string() parser allocates a buffer for the FXP_HANDLE response but does not verify that the buffer is fully populated; the client subsequently echoes the uninitialized remainder - containing heap base pointers and the libgio load address - back to the attacker on every subsequent file-handle request. No public exploit has been identified at time of analysis, and the issue does not appear in CISA KEV, but the ASLR bypass it achieves is a high-value precursor for chained memory-corruption attacks against gvfsd-sftp.
Unauthenticated enumeration of internal PKI topology is possible in Red Hat Certificate System 9 through an unprotected REST endpoint. Any network-accessible client can issue GET /ca/rest/securityDomain/hosts and receive a structured inventory of all participating CA subsystem hosts, their roles, and security domain membership - without presenting credentials, a client certificate, or a session token. While the direct CVSS impact is rated medium (5.3), the real-world significance lies in enabling precise reconnaissance of internal PKI infrastructure that could facilitate targeted follow-on attacks against specific subsystems. No active exploitation is confirmed and no public exploit code has been identified at time of analysis.
Unauthenticated network attackers can elicit Java stack traces from Red Hat IdM's Dogtag CA REST enrollment endpoint (POST /ca/rest/certrequests) by submitting malformed requests, causing HTTP 500 responses that expose internal implementation details under CWE-209. The same error path simultaneously amplifies the CA debug log with large multi-line stack traces, creating a log-fill resource exhaustion vector that drives disk growth and I/O contention on affected RHEL 6 through 10 deployments. No public exploit has been identified at time of analysis, but the attack requires no authentication and low complexity, making it accessible to unskilled opportunistic attackers targeting IdM infrastructure.
Heap metadata corruption in the popt command-line parsing library's `poptConfigFileToString` function can be triggered by a local, low-privileged attacker who supplies specially crafted configuration file content to an affected host. Successful exploitation causes the consuming process to crash, resulting in denial of service. CVSS 2.5 (Low) reflects the strictly local, high-complexity exploitation path with no confidentiality or integrity impact; no public exploit code or active exploitation (CISA KEV) is known at time of analysis.
Heap out-of-bounds read and stack out-of-bounds access in GIMP's file-psd plugin allow an attacker to crash the application or disclose limited memory contents by convincing a user to open a specially crafted PSD image. The flaw affects GIMP as shipped in Red Hat Enterprise Linux 6 through 9 and stems from missing validation of the channel-count parameter during PSD parsing. No active exploitation has been identified; the attack requires local file delivery and deliberate user interaction, significantly constraining real-world risk.
Heap out-of-bounds read in GIMP's file-pvr plugin exposes users of Red Hat Enterprise Linux 6 through 9 to application crashes and limited heap memory disclosure when opening a crafted PVR image file. The VQ (Vector Quantization) compressed-texture decoder omits mandatory bounds validation, allowing a malicious image to read beyond allocated heap regions. Impact is primarily denial of service via crash, with a secondary low-severity information disclosure path; no public exploit code and no CISA KEV listing are associated with this issue at time of analysis.
Heap out-of-bounds read in GIMP's file-ico plugin allows a local attacker to crash GIMP or leak limited heap memory contents by delivering a specially crafted ICO image file to a victim user. Affected packages span Red Hat Enterprise Linux 6 through 9. No public exploit code or CISA KEV listing exists at time of analysis, but the user-interaction requirement (opening a malicious file) is the primary delivery mechanism and a realistic social-engineering target in image-processing workflows.
Out-of-bounds memory write in libsolv crashes RPM-based package manager tools (dnf, yum, zypper) when processing a corrupted or specially crafted .solv repository cache file. The root cause is an absent array-index bounds check on directory-id values read from compressed filelist data during .solv file rewriting - but because the out-of-bounds write stores only a fixed, non-attacker-controlled value, the vendor explicitly rules out arbitrary code execution, confining impact to denial of service. No public exploit has been identified and no active exploitation is confirmed; note that the 'RCE' metadata tag conflicts directly with the description and appears to be erroneous.
Heap out-of-bounds read in GIMP's file-iff plugin allows a local attacker to crash the application or disclose limited heap memory contents by delivering a specially crafted IFF/ILBM image file. The flaw stems from missing validation of HAM row size when the number of color planes (nPlanes) is zero, causing a size mismatch that bypasses memory bounds checking. No active exploitation has been confirmed (not in CISA KEV) and no public exploit code has been identified at time of analysis.
Denial of service in jwcrypto's JWE.deserialize() function allows a remote unauthenticated attacker to crash any service that processes untrusted JWE tokens by submitting a malformed compact serialization containing an excessive number of period delimiters, triggering uncontrolled memory allocation and a MemoryError. Affected deployments include Red Hat Ansible Automation Platform 2, RHEL 9 and 10, OpenShift AI (RHOAI), and OpenStack Platform 16.2 as disclosed via Red Hat Bugzilla 2524147 and upstream advisory GHSA-96rv-c4vc-h4f4. No public exploit code or CISA KEV listing exists at time of analysis, and impact is confined to availability with no confidentiality or integrity exposure.
Out-of-bounds write in gdk-pixbuf's JPEG decoder affects any application on Red Hat Enterprise Linux 6 through 10 that renders JPEG images containing chunked ICC profile markers. When ICC profile parsing encounters an error, stale size metadata persists after the profile buffer is freed; a subsequent allocation within the same decode operation then writes beyond buffer boundaries, crashing the application. No active exploitation has been identified (no CISA KEV listing), and no public exploit code is known at time of analysis, but the availability-only impact and user-interaction requirement make this a realistic denial-of-service risk in desktop and server image-processing contexts.
Stack-based denial of service in GIMP's Seattle FilmWorks (SFW) image plugin crashes the application when a crafted SFW file triggers an unbounded variable-length array allocation on the stack. The flaw affects all GIMP versions per the GNOME CPE string and is confirmed across Red Hat Enterprise Linux 6 through 9. An attacker who can deliver a malicious SFW file to a user can reliably crash the GIMP process with no code execution or data exposure; no public exploit has been identified at time of analysis.
Heap out-of-bounds read in GIMP's file-xwd plugin allows a crafted XWD image file to trigger an application crash or leak partial heap memory contents into the rendered image output. Users running GIMP on Red Hat Enterprise Linux 6 through 9 are affected when they open a malicious XWD file; the plugin fails to cross-validate image width and bytes-per-line parameters against the allocated buffer size, permitting an out-of-bounds read. No public exploit is identified at time of analysis and the vulnerability is not listed in CISA KEV, placing real-world urgency in the low-to-moderate range.
Resource exhaustion via crafted SASL UNBIND in 389 Directory Server (389-ds-base) allows a remote authenticated attacker to stall connections and deny LDAP service to legitimate users. Affected deployments span Red Hat Directory Server 11, 12, and 13, plus 389-ds-base as packaged across RHEL 6 through 10. No public exploit code or CISA KEV listing has been identified at time of analysis, though the CVSS 6.5 rating (AV:N/AC:L/PR:L) indicates low-complexity network exploitation requiring only a low-privilege LDAP bind - a realistic bar in any environment with shared directory users.
Stack exhaustion and a bounded memory over-read in GIMP's file-pix (ESM) plugin allow a crafted PIX image to crash the application and leak 21 bytes of stack memory into an intermediate file. Users running GIMP on Red Hat Enterprise Linux 6 through 9 are affected when opening untrusted PIX format images. No public exploit code and no active exploitation (CISA KEV) have been identified at time of analysis, though the DoS impact is reliable and the delivery vector - a malicious image file - is realistic for desktop users.
Improper certificate validation in JSS (Java Security Services) allows the JSSTrustManager class to accept CA certificates from the NSS database that lack TRUSTED_CA trust flags, meaning certificates never explicitly designated as trust anchors can still be used to anchor TLS chains. In non-default deployments where certificate revocation checking has been disabled, this creates a viable path for a man-in-the-middle attacker to forge certificates accepted by PKI client connections, with high confidentiality and low integrity impact. No public exploit has been identified at time of analysis, and the AC:H CVSS rating reflects the meaningful attack complexity - MITM positioning plus a specific non-default configuration must both be present.
Denial of service in FreeIPA's ipa-enrollment SLAPI plugin allows any authenticated LDAP client to crash the 389 Directory Server by sending a malformed extended operation. The flaw (CWE-476, null pointer dereference) is triggered by omitting the request value for the JOIN_OID in the ipa-enrollment extended operation, causing the server to dereference a null pointer and crash. No public exploit or active exploitation has been identified at time of analysis; however, the low attack complexity and network-accessible vector make this a credible threat against any RHEL Identity Management deployment.
Resource exhaustion in FreeIPA's OTP key processing path allows any low-privilege authenticated domain user to degrade the IPA authentication service. By submitting an oversized One-Time Password key, the user triggers an unbounded decode/re-encode cycle (CWE-770) that consumes excessive CPU and memory, degrading availability for all dependent systems and users. No public exploit code exists at time of analysis, and this CVE is not listed in CISA KEV; however, the AV:N/PR:L CVSS vector means any valid domain account on a network-accessible FreeIPA instance is sufficient to trigger the condition.
Integer truncation in libsoup's SoupServer Range-header comparator silently drops byte ranges from HTTP 206 Partial Content responses when the target resource exceeds approximately 2 GB. The sort_ranges() function in soup-message-headers.c narrows a 64-bit offset subtraction to a 32-bit int return value, inverting the comparator sign whenever offsets differ by more than INT_MAX, causing incorrect range sorting and silent omission of content. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation requires network access to a SoupServer instance serving files larger than ~2 GB.
Heap overread in swtpm's SWTPM_NVRAM_CheckHeader() function allows local low-privileged users to crash the swtpm daemon and leak heap memory contents to system logs on Red Hat Enterprise Linux 8, 9, and 10. The root cause is a classic sizeof-pointer vs. sizeof-struct confusion: the guard compares buffer length against sizeof(bh) (pointer width, 8 bytes on 64-bit) rather than sizeof(*bh) (actual struct size), permitting undersized buffers to bypass validation and triggering a 2-byte heap overread on 64-bit systems or 6 bytes on 32-bit. No public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds memory read in BlueZ's AVRCP implementation allows a physically proximate attacker - within Bluetooth radio range - to crash the bluetoothd daemon and potentially leak heap memory contents by sending a malformed GetFolderItems response. The flaw resides in parse_media_element() and parse_media_folder(), which fail to validate packet length fields before reading. Exploitation requires the victim to interactively pair with the attacker-controlled malicious Bluetooth device. No public exploit code or CISA KEV listing has been identified at time of analysis.
Denial of service in dnsmasq's DNSSEC validation code allows an attacker who operates any DNSSEC-signed authoritative zone to permanently hang the dnsmasq process with a single crafted DNS response, killing all DNS resolution for every client served by that instance. Affected deployments include dnsmasq as packaged in Red Hat Enterprise Linux 6 through 10 and Red Hat OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis; the assigned CVSS score of 4.4 (Medium) carries a notable inconsistency between the stated local attack vector and the network-delivered attack mechanism described.
Undertow's HTTP response header writing path silently truncates 16-bit Unicode characters to 8-bit bytes via a narrowing cast in the `writeString()` method, enabling remote unauthenticated attackers to inject ASCII control characters or special symbols into response headers when an application passes unsanitized user-controlled input into those headers. Affected Red Hat distributions include RHEL 8/9/10, JBoss EAP 7, Red Hat Build of Apache Camel for Spring Boot 4, and Red Hat Single Sign-On 7, as reported by Red Hat via Bugzilla #2516038. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog.
Privileged file corruption and denial of service in sblim-sfcb (Small Footprint CIM Broker) on Red Hat Enterprise Linux 6 through 10 is achievable by a local low-privileged attacker exploiting a symlink-based race condition during privileged instance migration. The SFCB daemon writes to a temporary file in /tmp without atomic safety guarantees, allowing an attacker who repeatedly races a symbolic link into place to redirect that privileged write to an arbitrary file path. No public exploit has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
Out-of-bounds memory read in sblim-sfcb's provider-manager IPC message parser allows a local low-privileged attacker to crash the provider-manager process, causing denial of service and potentially leaking limited adjacent memory contents. The vulnerability stems from unsafe deserialization of attacker-controlled IPC messages without adequate boundary validation, affecting sblim-sfcb as shipped across Red Hat Enterprise Linux versions 6 through 10. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained to local system access.
Insecure temporary file creation in sblim-cmpi-base provider registration scripts exposes Red Hat Enterprise Linux 6 through 10 to a local symlink attack, enabling a low-privileged user to redirect privileged file writes to arbitrary paths. When registration scripts execute under elevated (root) privileges, an attacker who pre-positions a symlink in a world-writable directory can cause those scripts to overwrite root-owned files, disrupting system services or integrity. No public exploit code has been identified at time of analysis, and exploitation requires both local access and favorable timing, but the integrity and availability impact on a compromised host are rated high by the vendor.
The iscsiuio DHCP parser in open-iscsi crashes when processing maliciously crafted DHCP reply packets, disrupting iSCSI storage connectivity or network boot on affected hosts. An integer underflow (CWE-191) in the IPv4/UDP DHCP reply parsing path triggers an out-of-bounds read, causing the iscsiuio process to terminate; impact is limited to availability with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and the adjacent-network attack vector constrains the realistic attacker population to the same Layer-2 segment as the target.
Integer underflow in open-iscsi's iscsiuio daemon crashes the process when parsing malformed DHCPv6 Advertise packets with a truncated UDP length field, disrupting iSCSI storage connectivity. Systems running Red Hat Enterprise Linux 9 and 10 with iscsiuio actively engaged in a DHCPv6 exchange are exploitable by any unauthenticated attacker on the same adjacent network segment. No active exploitation (CISA KEV) or public proof-of-concept has been identified at time of analysis; real-world impact is highest in shared or multi-tenant storage network environments where adjacency cannot be guaranteed.
Denial of service in open-iscsi's iscsiuio daemon allows an unauthenticated attacker on the same local network segment to render the daemon permanently unresponsive by sending a single crafted ICMPv6 Router Advertisement carrying a zero-length option, triggering an infinite loop and sustained CPU exhaustion. Affected deployments include Red Hat Enterprise Linux 9 and 10 systems where iscsiuio is active for iSCSI hardware offload. A secondary out-of-bounds read risk exists when a short IPv6 payload is processed, though no memory corruption or data exposure has been confirmed from available intelligence; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer underflow in GStreamer's avidemux element allows a remote unauthenticated attacker to trigger heap out-of-bounds read and write, heap memory disclosure, and application crash by delivering a crafted AVI file containing a malformed FUJIFILM strd chunk. The gst_avi_demux_parse_strd() function decrements its remaining-length counter by fixed offsets without bounds checking, causing unsigned integer wraparound for payloads of exactly 106 or 107 bytes. Because avidemux is auto-plugged by GStreamer's high-level components (playbin, decodebin, gst-discoverer), any application that opens or previews a media file - including GNOME Files, Nautilus, Totem, and many others - can trigger the vulnerability without user awareness. No public exploit or active exploitation (CISA KEV) has been identified at time of analysis; a vendor-released patch is available in gst-plugins-good 1.28.6.
Out-of-bounds read in GStreamer's avidemux plugin (gst-plugins-good) allows a remote, unauthenticated attacker to crash media-processing applications and potentially leak memory contents by supplying a crafted AVI file. The flaw resides in gst_avi_demux_riff_parse_vprp(), where the count of video field descriptors is derived by dividing remaining buffer size by an attacker-controlled vprp->fields value rather than the struct size, causing the parser to treat more descriptors as valid than the buffer holds. User interaction is required to trigger the bug (the victim must open or stream the malicious AVI via playbin or decodebin), and the primary confirmed impact is denial of service; limited information disclosure is also possible. No public exploit or CISA KEV listing has been identified at time of analysis.
Use-After-Free vulnerabilities in the GNU linker (ld) component of binutils crash the linker process when processing crafted object or archive files during LTO-enabled linking on Red Hat Enterprise Linux systems. The flaws exist at three distinct dereference points in add_archive_element() in ld/ldmain.c, where plugin_maybe_claim() frees the BFD object but the caller retains dangling pointers that are subsequently accessed. The attack surface is confined to build-time environments, with the primary realistic threat being a supply chain attack introducing a malicious object file into CI/CD pipelines or developer build systems; no public exploit code or active exploitation has been confirmed at time of analysis.
Heap corruption via double-free in 389-ds-base's LDAP control parsing allows an unauthenticated remote attacker to crash the directory service with a single crafted BIND request. The flaw resides in `get_ldapmessage_controls_ext()`, which frees a parsed controls array when rejecting an unknown critical Session Tracking control but fails to clear the corresponding SLAPI_REQCONTROLS pblock slot - causing operation teardown to free the same pointer a second time. Affected deployments include Red Hat Directory Server 11 through 13 and the 389-ds-base package across all supported RHEL versions (6-10). No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; the CVSS AC:H rating reflects that reliable heap exploitation requires specific memory layout conditions rather than a trivially repeatable one-shot crash.
HTTP request smuggling in Undertow's ChunkReader component enables unauthenticated remote attackers to inject out-of-sync requests, bypassing upstream security controls such as authentication layers or reverse-proxy ACLs. Affected deployments include JBoss EAP 7, WildFly, Red Hat Enterprise Linux 8/9/10, Red Hat Data Grid 8, Red Hat Fuse 7, Red Hat Single Sign-On 7, and several Apache Camel-based Red Hat products. No confirmed active exploitation or public proof-of-concept has been identified at time of analysis; the CVSS 5.3 Medium score reflects limited direct impact, though real-world risk in proxy-fronted architectures is meaningfully higher than the score alone suggests.
Cleartext credential exposure in Red Hat insights-core allows SSSD LDAP bind passwords (ldap_default_authtok) and Pacemaker fence device credentials to be included unredacted in diagnostic archives uploaded to console.redhat.com. The redaction layer uses a naive string-match on the literal key name 'password', leaving non-standard credential field names - such as those used by SSSD and Pacemaker - completely unprotected before archive upload. With CVSS PR:L, a threat actor with authenticated access to an organization's Red Hat Insights console can retrieve these cleartext credentials from stored archives. No public exploit identified at time of analysis and not confirmed in CISA KEV.
NULL pointer dereference in the shim application's dp.c library exposes Red Hat Enterprise Linux 7, 8, and 9 systems using UEFI Secure Boot to a local denial-of-service condition. An attacker with high local privileges and the ability to interact with the shim boot path can trigger the missing NULL pointer check, potentially disrupting the boot process. No public exploit code has been identified at time of analysis, and the low CVSS score of 3.9 reflects the constrained attack prerequisites, though the changed scope (S:C) signals that the impact crosses from the shim component into the broader boot environment.
Sensitive guest disk contents are exposed to any local user on Red Hat Enterprise Linux KVM hosts due to `qemu-img` creating new volume image files with world-readable permissions during libvirt storage clone or convert operations. Affected platforms span RHEL 6 through 10 and RHEL for Nvidia 26. No public exploit code has been identified and this vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at time of analysis, but the CVSS C:H rating reflects full guest disk exposure to a low-privileged local attacker.
Signed integer overflow in GIMP's file-fli plugin causes application crashes when processing maliciously crafted FLI animation files, resulting in denial of service. The flaw affects GIMP as packaged on Red Hat Enterprise Linux 6 through 9, where incorrect multiplication of image width and height during buffer size calculation can overflow a signed integer, producing an invalid allocation. No public exploit code or active exploitation has been identified; impact is strictly limited to availability, with no confidentiality or integrity consequences.
Missing authorization on CleanAllRUV and Abort CleanAllRUV LDAP extended operations in 389 Directory Server (Red Hat Directory Server 11-13) allows unauthenticated remote attackers - when the default anonymous access setting is active - to manipulate replication metadata, purge changelog records, and abort administrator-initiated cleanup tasks. The affected operations are replication-maintenance primitives that bypass the authorization layer entirely (CWE-862), meaning no account or session is required under default configuration. No public exploit code or active exploitation in CISA KEV has been identified at time of analysis, but the network-accessible, zero-authentication attack surface in a widely deployed enterprise directory server makes this a notable availability and integrity risk.
Integer overflow in p11-kit's RPC message parser on 32-bit systems allows a local attacker, or any principal with access to a reachable RPC channel, to crash the p11-kit process via a heap out-of-bounds write, resulting in Denial of Service. Affected deployments span Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.
SELinux label manipulation via TOCTOU race condition in the policycoreutils fixfiles script allows a local low-privileged attacker to corrupt SELinux mandatory access control labels on arbitrary system files, including security-critical targets such as /etc/shadow. The flaw affects fixfiles when run in relabel or restore mode across all supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit code or active exploitation has been identified at time of analysis, and exploitation is constrained by both a required race condition win and the need for an administrator to actively invoke fixfiles.
Persistent denial of service in libkcapi's AIO interface allows a local attacker to permanently hang an affected application thread by exploiting improper error-state handling in _kcapi_aio_read_all(). Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4 - all environments where applications leverage libkcapi's asynchronous cryptographic operations. No public exploit code or active exploitation has been identified at time of analysis; the high attack complexity (AC:H) and local-only attack vector substantially limit real-world risk beyond targeted or insider-threat scenarios.
IV reuse in libkcapi's one-shot symmetric cipher operations allows a remote attacker to weaken data confidentiality for applications processing inputs larger than 64 KiB under stateful modes (CTR or CBC). Affected deployments include Red Hat Enterprise Linux 8, 9, and 10, Red Hat Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation has been identified; the AV:N vector reflects an indirect attack path where an adversary induces a vulnerable application to process specially crafted oversized inputs, enabling ciphertext analysis to expose plaintext relationships or recover data.
Persistent denial of service in dhcp-server (dhcpd) on Red Hat Enterprise Linux 6 through 9 is triggered via a crafted OMAPI lease creation request containing an overly long InfiniBand MAC address, overflowing a buffer in `print_hw_addr()` and crashing the dhcpd daemon in a way that prevents automatic recovery. The official CVSS score of 4.9 with PR:H reflects the assumption that TSIG authentication guards the OMAPI port; however, the description explicitly highlights that TSIG is optional and often absent, reducing the realistic exploitation barrier to unauthenticated network access. No confirmed active exploitation (KEV) or public proof-of-concept exists at time of analysis.
Stack-based out-of-bounds read in stunnel's s_vlog logging function allows remote unauthenticated attackers to crash the service by sending protocol inputs that generate log messages exceeding 1024 bytes via vsnprintf. The primary impact is service disruption (availability), with a limited integrity impact in corner cases where trailing newline characters in the stack buffer can be overwritten with null bytes. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
SSRF bypass in stunnel 5.79 and earlier allows authenticated SOCKS proxy clients to circumvent intended localhost access restrictions by supplying IPv4-mapped IPv6 addresses (e.g., ::ffff:127.0.0.1) or unspecified addresses (0.0.0.0, ::) in proxy requests. Exploitation reaches loopback-bound services on the stunnel host - services deliberately isolated from external network access - potentially exposing internal APIs, administrative interfaces, or other localhost-only endpoints. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis.
Off-by-one memory corruption in popt's poptStuffArgs function allows a local low-privileged attacker to overwrite adjacent memory and potentially execute arbitrary code within any host application that unsafely processes the corrupted argument data. All supported Red Hat Enterprise Linux releases (6 through 10), Red Hat Hardened Images, and OpenShift Container Platform 4 ship the affected library. No public exploit code has been identified and no CISA KEV listing exists; exploitation requires high-complexity triggering conditions, making this a routine patch priority rather than an emergency response item.
Uninitialized heap memory disclosure in SSSD's NSS responder exposes cached directory data and heap layout to local authenticated users on RHEL 6 through 10 and OpenShift Container Platform 4. The sss_nss_protocol_fill_initgr() function pre-allocates a reply buffer sized for all group entries but fails to shrink it when groups are skipped, causing uninitialized heap bytes to be included in the response transmitted back to the requesting client. No public exploit code has been identified at time of analysis, and this is not listed in CISA KEV; however, leaked heap addresses may assist in chained attacks targeting ASLR bypass in sssd_nss.
GNU tar's incremental restore path contains a TOCTOU race condition in dumpdir 'X' rename handling, allowing a local attacker with write access to a backed-up directory to redirect file operations outside the intended extraction root during a privileged restore. Successful exploitation can result in arbitrary file creation, rename, or overwrite - enabling privilege escalation on systems running Red Hat Enterprise Linux 6 through 10 and Red Hat Hardened Images. No public exploit is identified at time of analysis, and no CISA KEV listing exists; the CVSS score of 4.4 reflects the constrained attack prerequisites including a required race window and administrator-initiated restore.
Authentication bypass in 389 Directory Server (Red Hat Directory Server 11-13) allows a network-connected user holding valid credentials for an administratively locked account to retain an authenticated LDAP session, defeating account-lock as an access-revocation control. The SASL PLAIN bind handler installs connection-level authenticated state before executing the account-lock check; when the lock check fails, only the error is returned to the client while the internal authenticated state on that connection persists unrevertd. No public exploit has been identified at time of analysis and no CISA KEV listing exists, but the real-world impact is highest in incident-response and employee-offboarding scenarios that rely on directory lock as the primary revocation mechanism.
GNU tar's --one-top-level extraction mode fails to confine hardlink targets to the designated top-level directory, allowing a crafted archive to plant hardlinks that escape the intended extraction boundary. When combined with a preexisting symbolic link already present under the working directory, an attacker who can induce a victim to extract a malicious archive may read or write files outside the intended extraction scope on systems running affected RHEL versions (6 through 10) and Red Hat Hardened Images. No public exploit has been identified at time of analysis, and exploitation requires both user interaction and a specific environmental pre-condition, keeping real-world risk moderate despite GNU tar's ubiquitous deployment.
Out-of-bounds read in SSSD's NSS responder allows a local user with standard privileges to crash the SSSD process by sending a crafted GETHOSTBYADDR request, causing system-wide denial of authentication and name resolution services. The vulnerable function `sss_nss_protocol_parse_addr()` fails to validate the `addrlen` field against the actual remaining packet body size, enabling heap over-read and process termination. No public exploit code or active exploitation has been identified at time of analysis, and this vulnerability is not listed in CISA KEV.
Heap-based out-of-bounds write in GIMP's PAA (Paint Shop Pro Array) file format plugin allows a remote attacker to potentially execute arbitrary code on a victim's system by tricking the user into opening a specially crafted PAA image. The flaw resides in the decode_lzss() decompression function, which writes data beyond the bounds of the allocated heap buffer, enabling heap metadata corruption. No public exploit or CISA KEV listing exists at time of analysis, but the RCE-tagged impact and buffer-write primitive make this a higher-severity risk than the CVSS 5.5 score suggests; the CVSS impact metrics reflect only availability (A:H) while the description and tags indicate arbitrary code execution potential - a notable discrepancy to investigate.
Stack-based buffer overflow in GIMP's file-png plugin on Red Hat Enterprise Linux 6 through 9 causes the application to crash when a user opens a crafted Animated PNG (APNG) image containing an oversized tRNS chunk, resulting in a Denial of Service limited to the affected user session. Exploitation requires local file access and active user interaction - a remote attacker would rely on social engineering (phishing, malicious download) to deliver the file. No active exploitation has been confirmed by CISA KEV, no public exploit code is identified at time of analysis, and EPSS data is unavailable in source intelligence.
Insecure file permissions in ansible-collection-redhat-leapp expose PostgreSQL backup archives to local non-root users on managed RHEL 9 and RHEL 10 nodes. When the `leapp_old_postgresql_data` remediation option is invoked with elevated privileges, the resulting backup archive is written with world-readable or group-readable permissions (CWE-732), allowing any local non-root user on that managed node to extract the full contents of the archived PostgreSQL data. No public exploit has been identified at time of analysis, and exploitation requires local authenticated access to the managed node.
The ansible-collection-redhat-leapp package exposes Ansible controller-side sensitive files to attacker-controlled managed nodes through a manipulated Leapp upgrade report. An attacker who has already obtained privileged write access to a managed node's Leapp report can craft malicious report content that, when an operator executes a specific remediation task, causes the Ansible controller to read and copy its own local files - including private keys and credentials - to the attacker-controlled managed node. No public exploit code has been identified at time of analysis, and this vulnerability is not listed in the CISA KEV catalog; however, the CVSS 3.1 score of 6.2 reflects real-world risk limited by the high privilege prerequisite and required operator interaction.
Denial of service in Samba's Kerberos KDC password change (kpasswd) service allows authenticated remote attackers to crash the KDC process by submitting specially crafted, malformed ASN.1-encoded password change requests. The server miscalculates the structure size of the incoming request and reads up to six bytes beyond the end of the allocated buffer; when this read strikes unmapped memory, the KDC process terminates rather than simply failing gracefully. No public exploit has been identified and no CISA KEV listing exists, but the disruption of a KDC in an Active Directory or Samba domain environment carries significant operational impact since authentication for the entire domain depends on KDC availability.
Samba's internal DNS server inserts unauthenticated TKEY registration requests into the TKEY name cache before rejecting them, allowing a remote unauthenticated attacker to exhaust the cache by flooding it with arbitrary TKEY names. Eviction of legitimate cache entries blocks TSIG-authenticated DNS query processing, producing a targeted denial of service against Active Directory environments relying on Samba's built-in DNS backend. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available from both Samba upstream and Red Hat.
Server-side request forgery in Dogtag PKI's ACME responder enables unauthenticated ACME account holders to direct the certificate server to make arbitrary HTTP GET requests to internal network addresses. The validator incorrectly accepts IP address literals as valid DNS identifiers and follows HTTP redirects without enforcing RFC-compliant public-address filtering, allowing internal network reconnaissance. When the InMemory database backend is in use, the response body returned by internal services is exposed to the attacker through ACME challenge error messages, compounding the confidentiality impact. No public exploit code or active exploitation has been identified at time of analysis.
Path traversal in the Performance Co-Pilot (PCP) pmproxy logger servlet on Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4 permits unauthenticated remote attackers to create arbitrary files and directories on the host filesystem by supplying a crafted hostname value in requests to the service. The primitive is write-only - no file contents can be read - but an attacker can abuse it to corrupt directory structures or exhaust disk space, leading to denial of service. No public exploit code has been identified at time of analysis and the vulnerability is not listed in the CISA KEV catalog.
Remote unauthenticated denial of service and memory disclosure in the Performance Co-Pilot (PCP) pmproxy service affects Red Hat Enterprise Linux 6 through 10 and OpenShift Container Platform 4. An out-of-bounds read (CWE-125) in the pmLogLoadInDom() function can be triggered by a specially crafted network request, causing the pmproxy process to crash and potentially leaking sensitive data from process memory. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Out-of-bounds heap read in GNU Binutils linker when processing 32-bit XCOFF files allows local attackers to disclose heap memory and cause denial of service. Affects Red Hat Enterprise Linux 6 through 10, Hardened Images, and OpenShift Container Platform 4. No public exploit or active exploitation identified at time of analysis; EPSS data unavailable.
Authorization bypass in Red Hat Certificate System's CA renewal path allows an authenticated user to renew a certificate belonging to a different realm without the required realm-based authorization check. Affects versions 9, 10, and 11 of the Certificate System on Red Hat Enterprise Linux 6 through 10. No evidence of active exploitation or public exploit code exists at the time of analysis, and EPSS probability is low (0.21%).
Local information disclosure in accountsservice on Red Hat Enterprise Linux allows systemd-homed users to read arbitrary files via the SetIconFile handler. A proof-of-concept exists, but exploitation requires a local account managed by systemd-homed, limiting impact
Denial of service in dbus-broker allows a local attacker to crash the user session bus broker when file descriptor limits are exhausted. Affected products include Red Hat Enterprise Linux 9/10, Red Hat OpenShift Container Platform 4, and Red Hat Hardened Images where dbus-broker is deployed. No active exploitation or public exploit code is known, and EPSS indicates low exploitation probability (0.11%).
Red Hat Certificate System (RHCS) 9 is susceptible to a resource exhaustion denial-of-service condition triggered by unauthenticated remote attackers flooding its TLS-exposed HTTP endpoint. Repeated requests cause the underlying Java process to exhaust available heap memory, resulting in an Out of Memory crash that takes the certificate authority service offline. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of authentication requirements make this a realistic threat to any internet- or intranet-exposed RHCS deployment.
Out-of-bounds heap read in gdk-pixbuf's ICO parser exposes heap memory content through rendered image output, affecting Red Hat Enterprise Linux 6 through 10. When processing a crafted ICO file whose pixel indices exceed the defined palette size, the library reads beyond the palette array boundary - heap bytes are treated as palette entries and rendered as RGB pixel values in the output image, enabling an attacker to extract heap content by analyzing the rendered result. No public exploit has been identified at time of analysis and the vulnerability is not listed in CISA KEV, but server-side image processing pipelines that return rendered output to untrusted callers represent a realistic exposure path.
Format string vulnerability in GNU nano's multi-buffer error message handling allows a local low-privileged attacker to cause stack information disclosure, denial of service via crash, or potentially achieve arbitrary memory writes. The flaw (CWE-134) is triggered when a user opens multiple files at startup, one of which carries a specially crafted name containing printf format specifiers and another triggers an ALERT-level error - causing nano to misinterpret the filename as a format string. Reported by Red Hat and scoped to RHEL 6 through 10 and OpenShift Container Platform 4, no public exploit or CISA KEV listing exists at time of analysis.
Symlink-following vulnerability (CWE-59) in systemd-tmpfiles allows a local, low-privileged user to redirect privileged file write operations to an attacker-controlled path on affected Red Hat Enterprise Linux systems. The flaw resides in the path resolution logic within chase.c, where a safety check incorrectly treats all transitions away from the root user as inherently safe - failing to detect attacker-placed symlinks at tmpfiles.d target path components. Exploitation is constrained by high attack complexity requiring a specific non-default tmpfiles.d configuration, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Heap buffer overflow in Red Hat Directory Server (389-ds-base) exposes LDAP services to remote unauthenticated denial of service or potential arbitrary memory write via malformed DN input. When a Distinguished Name containing a legacy-quoted value is processed, the server fails to close the associated heap allocation, permitting a subsequent operation to reference the same memory pointer - a classic heap confusion primitive. No public exploit has been identified at time of analysis, and this vulnerability is not listed in CISA KEV, though the network-accessible unauthenticated attack surface warrants prompt patching for any externally reachable Directory Server deployment.
Off-by-one heap out-of-bounds read in the BlueZ SBC (Sub-Band Coding) frame decoder allows a Bluetooth-adjacent unauthenticated attacker to leak a single byte of heap memory by streaming a crafted audio payload. Red Hat Enterprise Linux 7 through 10 are confirmed affected via the bundled sbc library. No public exploit code exists and this vulnerability is not listed in CISA KEV, making active exploitation unlikely; the impact is constrained to minor information disclosure of a single heap byte.
Unbounded memory growth in libssh's SFTP client allows a malicious server to exhaust client-side memory by sending responses for unknown request IDs, resulting in a denial-of-service condition against any application using libssh for SFTP operations. Affected deployments include libssh as packaged in Red Hat Enterprise Linux 8, 9, 10, and Red Hat Hardened Images. No public exploit code and no active exploitation have been identified at time of analysis; the CVSS score of 5.3 (Medium) reflects the limited availability impact and the requirement that a victim client connect to an attacker-controlled server.
Stack-based buffer overflow in rpcbind's rpcinfo client utility crashes the rpcinfo process when a user or administrator runs `rpcinfo -s` against a malicious or compromised rpcbind endpoint. The flaw is in the `rpcbdump()` short-mode function, which writes version number data from a remote RPCBPROC_DUMP reply into a fixed-size stack buffer without bounds validation. Affected deployments span Red Hat Enterprise Linux 8, 9, and 10 as well as OpenShift Container Platform 4; no public exploit has been identified and this vulnerability does not appear in the CISA KEV catalog, placing real-world urgency in the medium tier despite the network-accessible attack vector.
Memory exhaustion in libssh's SFTP server subsystem allows authenticated remote clients to degrade or crash the service by sending SSH_FXP_READ requests specifying an arbitrarily large read length, causing the server to allocate unbounded memory for each request. The CVSS vector (PR:L) confirms exploitation requires valid credentials, limiting the attack surface to authenticated SFTP users. No public exploit code and no CISA KEV listing have been identified at time of analysis, though the low complexity and network-accessible attack path make this a realistic insider or credential-abuse scenario.
Signal misdelivery in libssh's ProxyCommand handling allows a low-privileged local user to trigger a local denial of service affecting their entire accessible process tree. When fork() fails during ProxyCommand execution, the error return value of -1 is stored unchecked as a child process ID; at cleanup, libssh signals PID -1, which Linux interprets as a broadcast to all processes the caller has permission to signal. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA's KEV catalog, but the CVSS scope-changed metric (S:C) confirms that impact extends beyond the libssh component itself to co-located user processes.
CPU exhaustion via malformed SSH channel negotiation in libssh allows an authenticated remote peer to cause indefinite server-side looping and denial of service. By advertising a zero maximum packet size in SSH_MSG_CHANNEL_OPEN, the attacker forces subsequent channel writes into an infinite loop, fully consuming CPU on the affected host. This affects libssh as shipped in Red Hat Enterprise Linux 8, 9, and 10 and Red Hat Hardened Images; no public exploit or CISA KEV listing has been identified at time of analysis.
Out-of-bounds heap read in libssh exposes small amounts of server memory during GSSAPI key exchange, exploitable by remote unauthenticated attackers. When a client submits a Curve25519 public key shorter than the expected 32 bytes during server-side GSSAPI key exchange, libssh copies the key without validating its length, triggering a read beyond the intended buffer boundary. No public exploit has been identified at time of analysis; exploitation is constrained to servers with GSSAPI key exchange explicitly enabled, which is a non-default configuration.
Sensitive memory exposure in kronosnet (versions <=1.34) allows a local attacker to recover live cluster encryption keys from freed heap memory following cryptographic configuration changes. Affected deployments include Red Hat Enterprise Linux 8, 9, 10, and OpenShift Container Platform 4, where kronosnet underpins the high-availability networking stack. Successful key recovery enables full decryption of cluster communications or malicious packet injection capable of destabilizing HA cluster quorum - no public exploit code identified and no CISA KEV listing at time of analysis.
ACL bypass in kronosnet (versions ≤ 1.34) allows remote unauthenticated attackers to inject arbitrary data packets into cluster communication channels under a specific dual-condition deployment configuration. By spoofing a valid link ID in crafted network frames, an attacker circumvents the ACL subsystem entirely, potentially causing data corruption or service instabilities in clustering stacks shipped with Red Hat Enterprise Linux 8, 9, 10 and OpenShift Container Platform 4. No public exploit code and no active exploitation have been identified at time of analysis.
Stack-based buffer overflow in the rpcinfo client utility (part of the rpcbind package) crashes the client process when querying a malicious or compromised rpcbind server using the `-l` flag. Address data returned by the server is copied into a fixed-size stack buffer without bounds validation (CWE-121), enabling a server-side attacker to trigger a denial of service against any administrator or script that runs `rpcinfo -l` against their controlled endpoint. No public exploit identified at time of analysis, and no CISA KEV listing; impact is confined to client-side availability with no confidentiality or integrity exposure.
Out-of-bounds memory corruption in kronosnet's packet reassembly engine (versions ≤ 1.34) enables a remote, unauthenticated network attacker to crash the kronosnet process or cause heap corruption by transmitting malformed fragmented packets carrying invalid sequence numbers. Affected deployments span Red Hat Enterprise Linux 8, 9, and 10, and Red Hat OpenShift Container Platform 4, making this relevant to HA clustering infrastructure that depends on kronosnet for inter-node communication via Corosync or Pacemaker. No public exploit code and no active exploitation have been identified at time of analysis, though the network-accessible, no-privilege-required attack path elevates operational risk for clustered environments despite the AC:H complexity rating.
Unvalidated chown in Samba's pam_winbind module allows a local user with narrow sudo delegation to transfer ownership of the root filesystem directory to a system account, causing system-wide denial of service on Red Hat Enterprise Linux 6 through 10. When mkhomedir is enabled and a system account has its home directory set to '/', any PAM-triggered authentication event run as that account via sudo invokes the chown without path sanitization. The resulting ownership change breaks SSH, sudo, and package-manager functionality, though the 0555 permissions on RHEL prevent write access escalation, confining the impact to high-severity availability loss. No public exploit or CISA KEV listing is identified at time of analysis.
Out-of-bounds read in libsoup's multipart processing exposes applications on Red Hat Enterprise Linux 6 through 10 to remote denial-of-service or partial memory disclosure. The flaw resides in soup_multipart_input_stream_read_headers() where oversized or malformed multipart boundary strings are not adequately size-validated, allowing an attacker to cause the stream reader to exceed its allocated buffer. A proof-of-concept exists per SSVC data, the attack is rated automatable, and no active exploitation is confirmed in CISA KEV - placing this in a monitored-but-actionable risk tier rather than an emergency response category.
Memory leak in libsoup's HTTP/2 implementation allows a remote, unauthenticated attacker to incrementally exhaust heap memory and crash the affected application through a sustained out-of-memory condition. Affected deployments include any application linking libsoup on Red Hat Enterprise Linux 6 through 10 that handles HTTP/2 connections from untrusted peers. No public exploit code has been identified and CISA has not listed this in KEV; however, the network-accessible attack surface with no authentication requirement makes it relevant for internet-facing services using libsoup. Notably, the provided CVSS vector (C:H/I:N/A:N) is internally inconsistent with the DoS-only description - the correct impact metrics should reflect Availability, not Confidentiality, and this discrepancy is flagged in the risk assessment.
Timing side-channel exposure in Red Hat Directory Server's PBKDF2-SHA256 password verification allows a remote unauthenticated attacker to send repeated LDAP bind requests and statistically infer partial hash information by measuring response-time differences caused by non-constant-time memcmp() comparisons. Affected deployments span Red Hat Directory Server 11 through 13 and the 389-ds-base package shipped across RHEL 6 through 10. No public exploit identified at time of analysis, and practical exploitation is acknowledged to be extremely difficult due to the computational overhead inherent in PBKDF2 key stretching, which substantially degrades the timing signal.
Attribute encryption in the 389-ds-base LDBM backend exposes a cryptographic design flaw affecting Red Hat Directory Server 11, 12, and 13 across all supported RHEL releases (6 through 10). The LDBM backend applies a static, hardcoded initialization vector (IV) for both AES-CBC and 3DES-CBC encryption of directory attribute values, meaning that two entries storing identical plaintext for an encrypted attribute will always produce identical ciphertext blocks - a classic ciphertext equality oracle. An attacker with privileged filesystem-level read access to the LDBM database files can exploit this to determine whether any two encrypted attribute values are identical, leaking relational information about the directory without recovering plaintext. No public exploit code has been identified at time of analysis, and this CVE is not listed in the CISA KEV catalog.
GStreamer's webrtcbin component accepts remote SDP offers and answers that are missing the required a=fingerprint attribute due to an inverted boolean logic check in _check_sdp_crypto(), undermining the DTLS certificate fingerprint binding that protects WebRTC media streams from interception. An attacker already positioned as a man-in-the-middle on the WebRTC signaling channel can strip the a=fingerprint attribute from SDP messages, which the vulnerable code then incorrectly accepts, allowing the attacker to substitute their own DTLS certificate and intercept or tamper with encrypted media. No public exploit code exists and no CISA KEV listing has been issued; however, the flaw is architecturally significant because it silently voids a key WebRTC security guarantee rather than causing an obvious crash.
Heap-buffer-overflow in 389 Directory Server's DN normalization routine allows an unauthenticated remote attacker to corrupt heap memory and likely crash the LDAP service. The flaw triggers when the server processes an LDAP operation - such as a search request - whose base DN contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name (RDN), causing an out-of-bounds write during RDN attribute-value pair sorting. Per the confirmed CVSS vector (PR:N), no authentication is required; no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer overflow in GIMP's PlayStation TIM image loader crashes the plug-in when processing a maliciously crafted TIM file, resulting in denial of service. The flaw affects GIMP as packaged on Red Hat Enterprise Linux 6 through 9, where the TIM loader multiplies two 16-bit unsigned short values (num_colors × num_cluts) without bounds checking, producing a 32-bit overflow that corrupts CLUT size calculation and triggers an abort. No public exploit code has been identified at time of analysis, and exploitation requires user interaction to open a crafted file, limiting real-world impact to targeted social engineering scenarios.
Two off-by-one errors in FreeIPA's ipa-otpd daemon expose RHEL 6 through 10 deployments configured with an external OAuth2/OIDC Identity Provider to out-of-bounds memory access during the device authorization flow. An attacker who controls or can man-in-the-middle the configured IdP endpoint can serve an oversized authorization response, triggering CWE-787 writes or reads one byte past a fixed-size buffer boundary. The most probable outcome is denial of service of the ipa-otpd daemon; no public exploit has been identified and the vulnerability is not listed in the CISA KEV catalog.