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

[Robert Buchholz <rbu () gentoo org>]

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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. 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 ">=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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