GLSA-200801-20 : libxml2: Denial of Service

This script is Copyright (C) 2008-2014 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-200801-20
(libxml2: Denial of Service)

Brad Fitzpatrick reported that the xmlCurrentChar() function does not
properly handle some UTF-8 multibyte encodings.

Impact :

A remote attacker could entice a user to open a specially crafted XML
document with an application using libxml2, possibly resulting in a
high CPU consumption. Note that this vulnerability could also be
triggered without user interaction by an automated system processing
XML content.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200801-20.xml

Solution :

All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/libxml2-2.6.30-r1'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 30137 (gentoo_GLSA-200801-20.nasl)

Bugtraq ID:

CVE ID: CVE-2007-6284