GLSA 200411-05: libxml2: Remotely exploitable buffer overflow
Posted on: 11/02/2004 04:45 PM

A libxml2 security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200411-05
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http://security.gentoo.org/
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Severity: High
Title: libxml2: Remotely exploitable buffer overflow
Date: November 02, 2004
Bugs: #69154
ID: 200411-05

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Synopsis
=======

libxml2 contains multiple buffer overflows which could lead to the execution of arbitrary code.

Background
=========

libxml2 is an XML parsing library written in C.

Affected packages
================

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Package / Vulnerable / Unaffected
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1 dev-libs/libxml2 < 2.6.15 >= 2.6.15

Description
==========

Multiple buffer overflows have been detected in the nanoftp and nanohttp modules. These modules are responsible for parsing URLs with ftp information, and resolving names via DNS.

Impact
=====

An attacker could exploit an application that uses libxml2 by forcing it to parse a specially-crafted XML file, potentially causing remote execution of arbitrary code.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All libxml2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.6.15"

References
=========

[ 1 ] BugTraq Advisory
http://www.securityfocus.com/archive/1/379383
[ 2 ] libxml2 ChangeLog
http://www.xmlsoft.org/ChangeLog.html
[ 3 ] CAN-2004-0989
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0989

Availability
===========

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200411-05.xml

Concerns?
========

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.

License
======

Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0


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