CVE-2006-6931

NameCVE-2006-6931
DescriptionAlgorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rules, allows remote attackers to cause a denial of service (CPU consumption and detection outage) via crafted network traffic, aka a "backtracking attack."
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs407421

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
snort (PTS)buster2.9.7.0-5fixed
buster (security)2.9.20-0+deb10u1fixed
bullseye2.9.15.1-5fixed
bullseye (security)2.9.20-0+deb11u1fixed
sid2.9.15.1-6fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
snortsource(unstable)2.7.0-1low407421

Notes

[sarge] - snort <no-dsa> (Minor issue)
[etch] - snort <no-dsa> (Minor issue)
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