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Gentoo Linux Security Advisory                           GLSA 201702-31
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: GPL Ghostscript: Multiple vulnerabilities
     Date: February 22, 2017
     Bugs: #596576, #607190
       ID: 201702-31

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Synopsis
=======
Multiple vulnerabilities have been found in GPL Ghostscript, the worst
of which may allow execution of arbitrary code.

Background
=========
Ghostscript is an interpreter for the PostScript language and for PDF.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-text/ghostscript-gpl
                                 < 9.20-r1                 >= 9.20-r1

Description
==========
Multiple vulnerabilities have been discovered in GPL Ghostscript and
the bundled OpenJPEG. Please review the CVE identifiers and
GLSA-201612-26 (OpenJPEG) referenced below for additional information.

Note: GPL Ghostscript in Gentoo since app-text/ghostscript-gpl-9.20-r1
no longer bundles OpenJPEG.

Impact
=====
A context-dependent attacker could entice a user to open a specially
crafted PostScript file or PDF using GPL Ghostscript possibly resulting
in the execution of arbitrary code with the privileges of the process
or a Denial of Service condition.

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 -v ">=app-text/ghostscript-gpl-9.20-r1"

References
=========
[ 1 ] CVE-2016-7976
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7976
[ 2 ] CVE-2016-7977
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7977
[ 3 ] CVE-2016-7978
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7978
[ 4 ] CVE-2016-7979
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7979
[ 5 ] CVE-2016-8602
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8602
[ 6 ] GLSA-201612-26
      https://security.gentoo.org/glsa/201612-26

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

 https://security.gentoo.org/glsa/201702-31

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 2017 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/