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Gentoo Linux Security Advisory                           GLSA 201804-14
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: GDK-PixBuf: Remote code execution
     Date: April 17, 2018
     Bugs: #644770
       ID: 201804-14

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Synopsis
========

A vulnerability has been found in GDK-PixBuf that may allow a remote
attacker to execute arbitrary code.

Background
==========

GDK-PixBuf is an image loading library for GTK+.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  x11-libs/gdk-pixbuf         < 2.36.11                 >= 2.36.11 

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

Several integer overflows were discovered in GDK-PixBuf's gif_get_lzw
function.

Impact
======

A remote attacker, by enticing a user to process a specially crafted
image file, could execute arbitrary code or cause a Denial of Service
condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GDK-PixBuf users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=x11-libs/gdk-pixbuf-2.36.11"

References
==========

[ 1 ] CVE-2017-1000422
      https://nvd.nist.gov/vuln/detail/CVE-2017-1000422

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

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

 https://security.gentoo.org/glsa/201804-14

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
https://bugs.gentoo.org.

License
=======

Copyright 2018 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.

https://creativecommons.org/licenses/by-sa/2.5

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