DescriptionSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the `stream.reassembly.depth` value helps reduce the severity of the issue.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
suricata (PTS)buster1:4.1.2-2+deb10u1vulnerable
trixie, sid1:7.0.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - suricata <no-dsa> (Minor issue)
[bullseye] - suricata <no-dsa> (Minor issue)
[buster] - suricata <no-dsa> (Minor issue) (suricata-6.0.16) (suricata-6.0.16) (suricata-6.0.16) (suricata-6.0.16) (suricata-6.0.16) (suricata-7.0.3) (suricata-7.0.3) (suricata-7.0.3) (suricata-7.0.3) (suricata-7.0.3)

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