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CVE-2013-4115

Published: 9 August 2013

Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.

Notes

AuthorNote
mdeslaur
this only affects 3.2+
although upstream has a patch for older versions, 3.1 and older
perform URL validation before hitting the affected code, so
they aren't vulnerable to the security issue.
saucy has vulnerable version in -proposed

Priority

Medium

Status

Package Release Status
squid3
Launchpad, Ubuntu, Debian
upstream
Released (3.2.12,3.3.7)
lucid Not vulnerable
(3.0.STABLE19-1ubuntu0.2)
precise Not vulnerable
(3.1.19-1ubuntu3.12.04.2)
quantal Not vulnerable
(3.1.20-1ubuntu1.1)
raring Not vulnerable
(3.1.20-1ubuntu3)
saucy Not vulnerable
(3.3.8-1ubuntu1)
Patches:
upstream: http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9200.patch (3.0)
upstream: http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10487.patch (3.1)
upstream: http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12587.patch (3.3)