What’s Vulnerable › Vulnerabilities

CVE-2024-55605: Suricata allows stack overflow in transforms

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-06 · updated 2026-06-17
• Weakness: CWE-400

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, a large input buffer to the to_lowercase, to_uppercase, strip_whitespace, compress_whitespace, dotprefix, header_lowercase, strip_pseudo_headers, url_decode, or xor transform can lead to a stack overflow causing Suricata to crash. The issue has been addressed in Suricata 7.0.8.

Affected products

• OISF suricata: before 7.0.8 — fixed in 7.0.8

How to fix

Upgrade to a fixed version: OISF suricata 7.0.8. Check the vendor advisory for mitigations.

References

• https://github.com/OISF/suricata/security/advisories/GHSA-x2hr-33vp-w289
• https://redmine.openinfosecfoundation.org/issues/7229

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