[ GLSA 200903-37 ] Ghostscript: User-assisted execution of arbitrary code

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200903-37
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Ghostscript: User-assisted execution of arbitrary code
      Date: March 23, 2009
      Bugs: #261087
        ID: 200903-37

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Synopsis
========

Multiple integer overflows in the Ghostscript ICC library might allow
for user-assisted execution of arbitrary code.

Background
==========

Ghostscript is an interpreter for the PostScript language and the
Portable Document Format (PDF).

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

    -------------------------------------------------------------------
     Package                   /   Vulnerable   /           Unaffected
    -------------------------------------------------------------------
  1  app-text/ghostscript-gpl       < 8.64-r2               >= 8.64-r2
  2  app-text/ghostscript-gnu       < 8.62.0                 >= 8.62.0
  3  app-text/ghostscript-esp     <= 8.15.4-r1             Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.
    -------------------------------------------------------------------
     3 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Jan Lieskovsky from the Red Hat Security Response Team discovered the
following vulnerabilities in Ghostscript's ICC Library:

* Multiple integer overflows (CVE-2009-0583).

* Multiple insufficient bounds checks on certain variable sizes
  (CVE-2009-0584).

Impact
======

A remote attacker could entice a user to open a specially crafted
PostScript file containing images and a malicious ICC profile, possibly
resulting in the execution of arbitrary code with the privileges of the
user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GPL Ghostscript users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-text/ghostscript-gpl-8.64-r2"

All GNU Ghostscript users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-text/ghostscript-gnu-8.62.0"

We recommend that users unmerge ESP Ghostscript and use GPL or GNU
Ghostscript instead:

 # emerge --unmerge "app-text/ghostscript-esp"

For installation instructions, see above.

References
==========

  [ 1 ] CVE-2009-0583
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0583
  [ 2 ] CVE-2009-0584
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0584

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

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

  http://security.gentoo.org/glsa/glsa-200903-37.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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