CVE-2025-59148: suricata Null Dereference — Fix

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
oisf	suricata	All
oisf	suricata	All
oisf	suricata	All

References

Advisories & Patches

https://github.com/OISF/suricata/commit/9f32550e18f97ea5d610dd7c36aab0ba142c096c

Other References

https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018 https://github.com/OISF/suricata/security/advisories/GHSA-5qf6-92xg-3rr3 https://redmine.openinfosecfoundation.org/issues/7838

Frequently Asked Questions

What is CVE-2025-59148? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-59148? +

CVE-2025-59148 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-59148? +

CVE-2025-59148 affects products from oisf, specifically: suricata. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-59148? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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