[ GLSA 200612-20 ] imlib2: Multiple vulnerabilities

[Raphael Marichez <falco () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200612-20
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: imlib2: Multiple vulnerabilities
      Date: December 20, 2006
      Bugs: #154216
        ID: 200612-20

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Synopsis
========

imlib2 contains several vulnerabilities that could lead to the remote
execution of arbitrary code or a Denial of Service.

Background
==========

imlib2 is an advanced replacement for image manipulation libraries such
as libXpm. It is utilized by numerous programs, including gkrellm and
several window managers, to display images.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  media-libs/imlib2       < 1.3.0                          >= 1.3.0

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

M. Joonas Pihlaja discovered several buffer overflows in loader_argb.c,
loader_png.c, loader_lbm.c, loader_jpeg.c, loader_tiff.c, loader_tga.c,
loader_pnm.c and an out-of-bounds memory read access in loader_tga.c.

Impact
======

An attacker can entice a user to process a specially crafted JPG, ARGB,
PNG, LBM, PNM, TIFF, or TGA image with an "imlib2*" binary or another
application using the imlib2 libraries. Successful exploitation of the
buffer overflows causes the execution of arbitrary code with the
permissions of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All imlib2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/imlib2-1.3.0"

References
==========

  [ 1 ] CVE-2006-4806
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4806
  [ 2 ] CVE-2006-4807
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4807
  [ 3 ] CVE-2006-4808
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4808
  [ 4 ] CVE-2006-4809
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4809

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

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

  http://security.gentoo.org/glsa/glsa-200612-20.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 2006 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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