CVE-2010-2951 - dns_internal.cc in Squid 3.1.6, when IPv6 DNS resolution is not enabled, accesses an invalid socket

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.

References

Vulnerable Configurations

cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:*
cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:*

CVSS

Base:	5.0 (as of 13-10-2010 - 04:00)
Impact:
Exploitability:

CWE

NVD-CWE-Other

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	LOW	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	PARTIAL

cvss-vector via4

AV:N/AC:L/Au:N/C:N/I:N/A:P

refmap via4

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

Last major update

13-10-2010 - 04:00

Published

12-10-2010 - 21:00

Last modified

13-10-2010 - 04:00