GLSA 200904-02 GLib: Execution of arbitrary code
Posted on: 04/03/2009 02:55 PM

A new security update has been released for Gentoo Linux - GLib: Execution of arbitrary code. Here the announcement:

Gentoo Linux Security Advisory GLSA 200904-02
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http://security.gentoo.org/
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Severity: Normal
Title: GLib: Execution of arbitrary code
Date: April 03, 2009
Bugs: #249214
ID: 200904-02

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Synopsis
========

Multiple integer overflows might allow for the execution of arbitrary
code when performing base64 conversion.

Background
==========

The GLib is a library of C routines that is used by a multitude of
programs.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/glib lt; 2.18.4-r1 gt;= 2.18.4-r1
*gt;= 2.16.6-r1

Description
===========

Diego E. Pettenò reported multiple integer overflows in glib/gbase64.c
when converting a long string from or to a base64 representation.

Impact
======

A remote attacker could entice a user or automated system to perform a
base64 conversion via an application using GLib, possibly resulting in
the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GLib 2.18 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=dev-libs/glib-2.18.4-r1"

All GLib 2.16 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=dev-libs/glib-2.16.6-r1"

References
==========

[ 1 ] CVE-2008-4316
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4316

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

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

http://security.gentoo.org/glsa/glsa-200904-02.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 2009 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/2.5



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