GLSA-200501-25 : Squid: Multiple vulnerabilities

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200501-25
(Squid: Multiple vulnerabilities)

Squid contains a vulnerability in the gopherToHTML function
(CAN-2005-0094) and incorrectly checks the 'number of caches' field
when parsing WCCP_I_SEE_YOU messages (CAN-2005-0095). Furthermore the
NTLM code contains two errors. One is a memory leak in the
fakeauth_auth helper (CAN-2005-0096) and the other is a NULL pointer
dereferencing error (CAN-2005-0097). Finally Squid also contains an
error in the ACL parsing code (CAN-2005-0194).

Impact :

With the WCCP issue an attacker could cause denial of service by
sending a specially crafted UDP packet. With the Gopher issue an
attacker might be able to execute arbitrary code by enticing a user to
connect to a malicious Gopher server. The NTLM issues could lead to
denial of service by memory consumption or by crashing Squid. The ACL
issue could lead to ACL bypass.

Workaround :

There is no known workaround at this time.

See also :

http://secunia.com/advisories/13825/
http://secunia.com/advisories/13789/
http://www.gentoo.org/security/en/glsa/glsa-200501-25.xml

Solution :

All Squid users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-proxy/squid-2.5.7-r2'

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 16416 (gentoo_GLSA-200501-25.nasl)

Bugtraq ID:

CVE ID: CVE-2005-0094
CVE-2005-0095
CVE-2005-0096
CVE-2005-0097
CVE-2005-0194