EUVD-2025-33222Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
5DescriptionGitHub Advisory
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Version 8.0.0's usage of the tls.subjectaltname keyword can lead to a segmentation fault when the decoded subjectaltname contains a NULL byte. This issue is fixed in version 8.0.1. To workaround this issue, disable rules using the tls.subjectaltname keyword.
Analysis
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Version 8.0.0's usage of the tls.subjectaltname keyword can lead to a segmentation fault when the decoded subjectaltname contains a NULL byte. This issue is fixed in version 8.0.1. To workaround this issue, disable rules using the tls.subjectaltname keyword.
Technical ContextAI
A NULL pointer dereference occurs when the application attempts to use a pointer that has not been initialized or has been set to NULL.
RemediationAI
A vendor patch is available — apply it immediately. Add NULL checks before pointer dereference operations. Use static analysis to identify potential NULL pointer issues. Enable compiler warnings.
OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Functi
An issue was discovered in Suricata before 6.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploit
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
Open Information Security Foundation Suricata prior to version 4.1.3 is affected by: Denial of Service - TCP/HTTP detect
Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. Rated high severity (CVSS 7.5), this vul
The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might a
In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code. Ra
Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a c
Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Denial Of Service
View allVendor StatusVendor
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| jammy | needs-triage | - |
| noble | needs-triage | - |
| upstream | not-affected | debian: Vulnerable code never present in a Debian released version, 8.0.x only issue |
| plucky | ignored | end of life, was needs-triage |
| questing | needs-triage | - |
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | fixed | 1:6.0.1-3 | - |
| bullseye (security) | fixed | 1:6.0.1-3+deb11u1 | - |
| bookworm | fixed | 1:6.0.10-1 | - |
| trixie | fixed | 1:7.0.10-1+deb13u2 | - |
| forky, sid | fixed | 1:8.0.3-1 | - |
| (unstable) | not-affected | - | - |
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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