Unrated severityNVD Advisory· Published Apr 10, 2025· Updated Nov 3, 2025
Suricata pcre: negated pcr can cause infinite loop
CVE-2025-29918
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A PCRE rule can be written that leads to an infinite loop when negated PCRE is used. Packet processing thread becomes stuck in infinite loop limiting visibility and availability in inline mode. This vulnerability is fixed in 7.0.9.
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Affected products
3Patches
Vulnerability mechanics
References
3- github.com/OISF/suricata/commit/b14c67cbdf25fa6c7ffe0d04ddf3ebe67b12b50bmitrex_refsource_MISC
- github.com/OISF/suricata/security/advisories/GHSA-924c-vvm5-9mqxmitrex_refsource_CONFIRM
- redmine.openinfosecfoundation.org/issues/7526mitrex_refsource_MISC
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