CVE-2010-2951

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2010/08/25/6
• http://www.openwall.com/lists/oss-security/2010/08/24/7
• http://bugs.squid-cache.org/show_bug.cgi?id=3009
• http://marc.info/?l=squid-users&m=128263555724981&w=2
• 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
• http://www.openwall.com/lists/oss-security/2010/08/24/6
• http://www.openwall.com/lists/oss-security/2010/08/25/2
• http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch

References

• http://www.openwall.com/lists/oss-security/2010/08/25/6
• http://www.openwall.com/lists/oss-security/2010/08/24/7
• http://bugs.squid-cache.org/show_bug.cgi?id=3009
• http://marc.info/?l=squid-users&m=128263555724981&w=2
• 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
• http://www.openwall.com/lists/oss-security/2010/08/24/6
• http://www.openwall.com/lists/oss-security/2010/08/25/2
• http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch

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