CVE-2025-59149: suricata Stack Overflow — Fix

Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In version 8.0.0, rules using keyword ldap.responses.attribute_type (which is long) with transforms can lead to a stack buffer overflow during Suricata startup or during a rule reload. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules with ldap.responses.attribute_type and transforms.

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CVSS v3.1 Score

6.2

MEDIUM

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

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

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

References

Advisories & Patches

https://github.com/OISF/suricata/commit/38a2cba5c397002047d84645f5ab770ff88020e1

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-vxcg-38x4-gj7j https://redmine.openinfosecfoundation.org/issues/7861

Frequently Asked Questions

What is CVE-2025-59149? +

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In version 8.0.0, rules using keyword ldap.responses.attribute_type (which is long) with transforms can lead to a stack buffer overflow during Suricata startup or during a rule reload. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules with ldap.responses.attribute_type and transforms. It has a CVSS v3.1 base score of 6.2 (MEDIUM).

How severe is CVE-2025-59149? +

CVE-2025-59149 has a CVSS v3.1 score of 6.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-59149? +

CVE-2025-59149 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-2025-59149? +

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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