CVE-2025-59150
Suricata: Keyword tls.subjectaltname can lead to NULL-ptr deref
- State
- Published
- Severity
- 7.5 High
- Published
- Oct 1, 2025
- Updated
- Oct 23, 2025
- Reserved
- Sep 9, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
suricataOISF |
|
References
- https://github.com/OISF/suricata/security/advisories/GHSA-mhv7-qfmj-m3f3
- https://github.com/OISF/suricata/commit/d590fdfe42e995fd558315f0c24f9a352e21479d
- https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
- https://redmine.openinfosecfoundation.org/issues/7881
- https://www.vicarius.io/vsociety/posts/cve-2025-59150-suricata-detection-script
- https://www.vicarius.io/vsociety/posts/cve-2025-59150-suricata-mitigation-script
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