Vulnerability · Published Oct 1, 2025 · Assigned by GitHub_M
CVE-2025-59148Suricata's improper use of entropy keyword can lead to a NULL-ptr deref
High 7.5
In plain English
A high-severity null pointer dereference in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 8.0.0 and below incorrectly handle the entropy keyword when not anchored to a "sticky" buffer, which can lead to a segmentation fault. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules using the entropy keyword, or validate they are anchored to a sticky buffer.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | suricata | 8.0.1-r0 | ALPINE-CVE-2025-59148 |
| Ubuntu:22.04:LTS | suricata | no fix listed | UBUNTU-CVE-2025-59148 |
| Ubuntu:24.04:LTS | suricata | no fix listed | UBUNTU-CVE-2025-59148 |
| Ubuntu:25.10 | suricata | no fix listed | UBUNTU-CVE-2025-59148 |
| Ubuntu:26.04:LTS | suricata | no fix listed | UBUNTU-CVE-2025-59148 |
| Ubuntu:26.10 | suricata | no fix listed | UBUNTU-CVE-2025-59148 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/OISF/suricata/security/advisories/GHSA-5qf6-92xg-3rr3 x_refsource_CONFIRM
- https://github.com/OISF/suricata/commit/9f32550e18f97ea5d610dd7c36aab0ba142c096c x_refsource_MISC
- https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018 x_refsource_MISC
- https://redmine.openinfosecfoundation.org/issues/7838 x_refsource_MISC