Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
2DescriptionCVE.org
A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.
AnalysisAI
Memory corruption via an off-by-one error in GnuTLS PKCS#12 bag element handling exposes any application using GnuTLS to remote unauthenticated denial of service - and potentially unspecified further impact - when a crafted PKCS#12 structure is parsed. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no authentication, no user interaction, and no elevated complexity, making internet-exposed services that parse client-supplied PKCS#12 inputs the primary risk surface. No public exploit code exists and the vulnerability is not listed in the CISA KEV catalog at time of analysis.
Technical ContextAI
GnuTLS is a widely deployed open-source TLS/SSL and DTLS implementation used as the core cryptographic library across Red Hat Enterprise Linux distributions and derivative platforms. PKCS#12 is a binary container format (RFC 7292) used to bundle cryptographic objects - certificates, private keys, and CA chains - into transportable 'bags.' The root cause is CWE-193 (Off-by-One Error): the internal bounds check governing the bag element array does not correctly enforce a limit at exactly 32 elements, permitting a write one index beyond the allocated array boundary when a 33rd element is appended. This out-of-bounds write corrupts adjacent heap memory, which can destabilize or crash the host process. The flaw is confirmed present across GnuTLS as packaged in Red Hat Enterprise Linux 6 through 10 (CPE: cpe:2.3:a:red_hat:red_hat_enterprise_linux_6 through _10), Red Hat Hardened Images (cpe:2.3:a:red_hat:red_hat_hardened_images), and Red Hat OpenShift Container Platform 4 (cpe:2.3:a:red_hat:red_hat_openshift_container_platform_4). The upstream GnuTLS version range is not specified in the available CPE data.
RemediationAI
Apply the Red Hat-issued erratum for GnuTLS via standard yum/dnf patching channels; consult https://access.redhat.com/security/cve/CVE-2026-42015 for the specific RHSA advisory number and exact fixed package version, as that data was not present in the provided intelligence. An exact fixed GnuTLS version cannot be cited here without independent confirmation from the advisory. As a compensating control where immediate patching is not feasible, disable or restrict processing of externally-supplied PKCS#12 inputs: for TLS endpoints, this means disabling mutual TLS (client certificate authentication) until patched - note this will break PKI-based client authentication workflows. For OpenShift Container Platform 4 nodes, prioritize patching of control-plane and ingress nodes that terminate TLS from untrusted networks. Services that consume only PEM-formatted certificates and never parse PKCS#12 files are not directly exposed by this flaw and carry lower urgency.
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Same weakness CWE-193 – Off-by-one Error
View allSame technique Buffer Overflow
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-Base Image SL-Micro-Base-RT Image SL-Micro-Base-RT-SelfInstall Image SL-Micro-Base-RT-encrypted Image SL-Micro-Base-SelfInstall Image SL-Micro-Base-encrypted Image SL-Micro-Base-qcow Image SL-Micro-EC2 Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd | Affected |
| Image SLES-Azure-3P Image SLES-Azure-Basic Image SLES-Azure-Standard Image SLES-BYOS-Azure Image SLES-BYOS-EC2 Image SLES-BYOS-GCE Image SLES-EC2 Image SLES-GCE Image SLES-GCE-3P Image SLES-Hardened-BYOS-Azure Image SLES-Hardened-BYOS-EC2 Image SLES-Hardened-BYOS-GCE Image SLES-SAPCAL-Azure Image SLES-SAPCAL-EC2 Image SLES-SAPCAL-GCE | Affected |
| Image SLES-SAP-Azure Image SLES-SAP-Azure-3P Image SLES-SAP-BYOS-Azure Image SLES-SAP-BYOS-EC2 Image SLES-SAP-BYOS-GCE Image SLES-SAP-EC2 Image SLES-SAP-GCE Image SLES-SAP-GCE-3P | Affected |
| SUSE Liberty Linux 8 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Micro 5.4 | Fixed |
| SUSE Linux Enterprise Micro 5.5 | Fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Fixed |
| SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP applications 16.0 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Fixed |
| SUSE Linux Micro 6.0 | Fixed |
| SUSE Linux Micro 6.2 | Fixed |
| SUSE Manager Proxy LTS 4.3 | Fixed |
| SUSE Manager Retail Branch Server LTS 4.3 | Fixed |
| SUSE Manager Server LTS 4.3 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Linux Enterprise Server 16.0 | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | Fixed |
| SUSE Linux Enterprise Micro 5.3 | Fixed |
| SUSE Linux Enterprise Micro 5.4 | Fixed |
| SUSE Linux Enterprise Micro 5.5 | Fixed |
| SUSE Linux Enterprise Micro for Rancher 5.4 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 15 SP7 | Fixed |
| SUSE Linux Enterprise Server 16.0 | Fixed |
| SUSE Linux Enterprise Server 16.1 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | Fixed |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Fixed |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Fixed |
| SUSE Linux Micro 6.0 | Fixed |
| SUSE Linux Micro 6.1 | Fixed |
| SUSE Linux Micro 6.2 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | Fixed |
| SUSE Linux Enterprise Module for Certifications 15 SP5 | Fixed |
| SUSE Linux Enterprise Server 12 SP5 | Fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | Fixed |
| SUSE Linux Enterprise Server 15 SP4 | Fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP5 | Fixed |
| SUSE Linux Enterprise Server 15 SP5-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP6 | Fixed |
| SUSE Linux Enterprise Server 15 SP6-LTSS | Fixed |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | Fixed |
| SUSE Manager Proxy 4.3 | Fixed |
| SUSE Manager Proxy LTS 4.3 | Fixed |
| SUSE Manager Retail Branch Server 4.3 | Fixed |
| SUSE Manager Retail Branch Server LTS 4.3 | Fixed |
| SUSE Manager Server 4.3 | Fixed |
| SUSE Manager Server LTS 4.3 | Fixed |
| SUSE CaaS Platform 4.0 | Fixed |
| SUSE Enterprise Storage 6 | Fixed |
| SUSE Enterprise Storage 7 | Fixed |
| SUSE Enterprise Storage 7.1 | Fixed |
| SUSE Linux Enterprise Desktop 12 SP3 | Fixed |
| SUSE Linux Enterprise Desktop 12 SP4 | Fixed |
| SUSE Linux Enterprise Desktop 15 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP1 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP2 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP3 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP4 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP5 | Fixed |
| SUSE Linux Enterprise Desktop 15 SP6 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | Fixed |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | Fixed |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | Fixed |
| SUSE Linux Enterprise Micro 5.0 | Fixed |
| SUSE Linux Enterprise Micro 5.1 | Fixed |
| SUSE Linux Enterprise Micro 5.2 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | Fixed |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | Fixed |
| SUSE Linux Enterprise Module for Certifications 15 SP3 | Fixed |
| SUSE Linux Enterprise Module for Certifications 15 SP7 | Fixed |
| SUSE Linux Enterprise Module for Desktop Applications 15 | Fixed |
| SUSE Linux Enterprise Real Time 15 SP2 | Fixed |
| SUSE Linux Enterprise Real Time 15 SP3 | Fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | Fixed |
| SUSE Linux Enterprise Server 12 SP3 | Fixed |
| SUSE Linux Enterprise Server 12 SP3-BCL | Fixed |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | Fixed |
| SUSE Linux Enterprise Server 12 SP3-LTSS | Fixed |
| SUSE Linux Enterprise Server 12 SP4 | Fixed |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | Fixed |
| SUSE Linux Enterprise Server 12 SP4-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 | Fixed |
| SUSE Linux Enterprise Server 15 SP1 | Fixed |
| SUSE Linux Enterprise Server 15 SP1-BCL | Fixed |
| SUSE Linux Enterprise Server 15 SP1-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP2 | Fixed |
| SUSE Linux Enterprise Server 15 SP2-BCL | Fixed |
| SUSE Linux Enterprise Server 15 SP2-LTSS | Fixed |
| SUSE Linux Enterprise Server 15 SP3 | Fixed |
| SUSE Linux Enterprise Server 15 SP3-BCL | Fixed |
| SUSE Linux Enterprise Server 15 SP3-LTSS | Fixed |
| SUSE Linux Enterprise Server 15-LTSS | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | Fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | Fixed |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | Fixed |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | Fixed |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | Fixed |
| SUSE Manager Proxy 4.0 | Fixed |
| SUSE Manager Proxy 4.1 | Fixed |
| SUSE Manager Proxy 4.2 | Fixed |
| SUSE Manager Retail Branch Server 4.0 | Fixed |
| SUSE Manager Retail Branch Server 4.1 | Fixed |
| SUSE Manager Retail Branch Server 4.2 | Fixed |
| SUSE Manager Server 4.0 | Fixed |
| SUSE Manager Server 4.1 | Fixed |
| SUSE Manager Server 4.2 | Fixed |
| SUSE OpenStack Cloud 8 | Fixed |
| SUSE OpenStack Cloud 9 | Fixed |
| SUSE OpenStack Cloud Crowbar 8 | Fixed |
| SUSE OpenStack Cloud Crowbar 9 | Fixed |
| openSUSE Leap 15.3 | Fixed |
| openSUSE Leap 15.4 | Fixed |
| openSUSE Leap 15.5 | Fixed |
| openSUSE Leap 15.6 | Fixed |
| openSUSE Leap Micro 5.2 | Fixed |
| openSUSE Leap Micro 5.3 | Fixed |
| openSUSE Leap Micro 5.4 | Fixed |
| openSUSE Leap Micro 5.5 | Fixed |
| SUSE Manager Proxy 4.3 LTS | Fixed |
| SUSE Manager Retail Branch Server 4.3 LTS | Fixed |
| SUSE Manager Server 4.3 LTS | Fixed |
| suse/sles/15.2/virt-handler:0.38.1 suse/sles/15.2/virt-launcher:0.38.1 suse/sles/15.3/virt-handler:0.45.0 suse/sles/15.3/virt-launcher:0.45.0 | Fixed |
| suse/sles/15.4/virt-handler:0.49.0 suse/sles/15.4/virt-launcher:0.49.0 suse/sles/15.5/virt-launcher:0.58.0 suse/sles/15.6/virt-launcher:1.1.1 suse/sles/15.7/virt-launcher:1.5.0 | Fixed |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-32012