Description
dns_internal.cc 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.
References
- [oss-security] 20100825 Re: CVE Request -- Squid v3.1.6 -- DoS (crash) while processing large DNS replies with no IPv6 resolver present mailing-list
- [oss-security] 20100825 Re: CVE Request -- Squid v3.1.6 -- DoS (crash) while processing large DNS replies with no IPv6 resolver present mailing-list
- http://bugs.squid-cache.org/show_bug.cgi?id=3009
- [squid-users] 20100824 Squid 3.1.7 is available mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=626927
- http://bugs.squid-cache.org/show_bug.cgi?id=3021
- http://bazaar.launchpad.net/~squid/squid/3.1/revision/10072
- http://bugs.gentoo.org/show_bug.cgi?id=334263
- [oss-security] 20100824 CVE Request -- Squid v3.1.6 -- DoS (crash) while processing large DNS replies with no IPv6 resolver present mailing-list
- [oss-security] 20100825 Re: CVE Request -- Squid v3.1.6 -- DoS (crash) while processing large DNS replies with no IPv6 resolver present mailing-list
- http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch