NameCVE-2010-2951 in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid socket during an IPv4 TCP DNS query, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors that trigger an IPv4 DNS response with the TC bit set.
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 severitymedium (attack range: remote)
Debian Bugs599709

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
squid3 (PTS)wheezy3.1.20-2.2+deb7u4fixed
wheezy (security)3.1.20-2.2+deb7u8fixed
jessie (security)3.4.8-6+deb8u5fixed
stretch (security), stretch3.5.23-5+deb9u1fixed
buster, sid3.5.27-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
squid3sourcelenny(not affected)


[lenny] - squid3 <not-affected> (vulnerable code introduced in 3.1.6)

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