What’s Vulnerable › Vulnerabilities

CVE-2024-32867: Suricata's defrag contains various issues leading to policy bypass

• Severity: medium (CVSS 5.3 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: 2024-05-07 · updated 2026-06-17
• Weakness: CWE-754

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, various problems in handling of fragmentation anomalies can lead to mis-detection of rules and policy. This vulnerability is fixed in 7.0.5 or 6.0.19.

Affected products

• OISF suricata: from 6.0.0 before 6.0.19; from 7.0.0 before 7.0.5 — fixed in 6.0.19, 7.0.5

How to fix

Upgrade to a fixed version: OISF suricata 6.0.19, 7.0.5. Check the vendor advisory for mitigations.

References

• https://github.com/OISF/suricata/commit/1e110d0a71db46571040b937e17a4bc9f91d6de9
• https://github.com/OISF/suricata/commit/2f39ba75f153ba9bdf8eedc2a839cc973dbaea66
• https://github.com/OISF/suricata/commit/414f97c6695c5a2e1d378a36a6f50d7288767634
• https://github.com/OISF/suricata/commit/bf3d420fb709ebe074019a99e3bd3a2364524a4b
• https://github.com/OISF/suricata/commit/d13bd2ae217a6d2ceb347f74d27cbfcd37b9bda9
• https://github.com/OISF/suricata/commit/e6267758ed5da27f804f0c1c07f9423bdf4d72b8
• https://github.com/OISF/suricata/security/advisories/GHSA-xvrx-88mv-xcq5
• https://redmine.openinfosecfoundation.org/issues/6672
• https://redmine.openinfosecfoundation.org/issues/6673
• https://redmine.openinfosecfoundation.org/issues/6677
• https://github.com/OISF/suricata/commit/1e110d0a71db46571040b937e17a4bc9f91d6de9
• https://github.com/OISF/suricata/commit/2f39ba75f153ba9bdf8eedc2a839cc973dbaea66

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