GLSA-200403-01 : Libxml2 URI Parsing Buffer Overflow Vulnerabilities

This script is Copyright (C) 2004-2014 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-200403-01
(Libxml2 URI Parsing Buffer Overflow Vulnerabilities)

Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6.
When the libxml2 library fetches a remote resource via FTP or HTTP, libxml2
uses parsing routines that can overflow a buffer caused by improper bounds
checking if they are passed a URL longer than 4096 bytes.

Impact :

If an attacker is able to exploit an application using libxml2 that parses
remote resources, then this flaw could be used to execute arbitrary code.

Workaround :

No workaround is available
users are urged to upgrade libxml2 to 2.6.6.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200403-01.xml

Solution :

All users are recommended to upgrade their libxml2 installation:
# emerge sync
# emerge -pv '>=dev-libs/libxml2-2.6.6'
# emerge '>=dev-libs/libxml2-2.6.6'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 14452 (gentoo_GLSA-200403-01.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0110