EUVD-2025-33225
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
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.
Analysis
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.
Technical Context
A NULL pointer dereference occurs when the application attempts to use a pointer that has not been initialized or has been set to NULL.
Affected Products
Affected products: Oisf Suricata 8.0.0
Remediation
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.
Priority Score
Vendor Status
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 | - | - |
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External POC / Exploit Code
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