National Vulnerability Database (NVD) National Vulnerability Database (CVE-2010-2951)

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Vulnerability Summary for CVE-2010-2951

Original release date:10/12/2010

Last revised:10/13/2010

Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

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External Source: CONFIRM

Name: http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch

Type: Patch Information

Hyperlink:http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10072.patch

External Source: MLIST

Name: [oss-security] 20100825 Re: CVE Request -- Squid v3.1.6 -- DoS (crash) while processing large DNS replies with no IPv6 resolver present

Type: Patch Information

Hyperlink:http://www.openwall.com/lists/oss-security/2010/08/25/2

External Source: MLIST

Name: [squid-users] 20100824 Squid 3.1.7 is available

Type: Advisory; Patch Information

Hyperlink:http://marc.info/?l=squid-users&m=128263555724981&w=2