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[gentoo-announce] [ GLSA 200904-02 ] GLib: Execution of arbitrary code

Posted on 03 April 2009
Gentoo-announce

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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 < 2.18.4-r1 >= 2.18.4-r1
*>= 2.16.6-r1

Description
===========
Diego E. Petten=F2 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 ">=dev-libs/glib-2.18.4-r1"

All GLib 2.16 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=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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