Descriptiondns2tcp before 0.4.1 does not properly handle negative values in a certain length field in the input argument to the (1) dns_simple_decode or (2) dns_decode function, which allows remote attackers to overwrite a buffer and have unspecified other impact.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh
Debian Bugs497730

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
dns2tcp (PTS)buster, jessie, stretch0.5.2-1.1fixed
bullseye, sid0.5.2-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs

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