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[gentoo-announce] [ GLSA 201701-67 ] a2ps: Arbitrary code execution

Posted on 29 January 2017
Gentoo-announce

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From: Thomas Deutschmann <whissi@gentoo.org>
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To: gentoo-announce@lists.gentoo.org
Message-ID: <cc389dde-76aa-d3f5-7369-747e56148fa3@gentoo.org>
Subject: [ GLSA 201701-67 ] a2ps: Arbitrary code execution

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Gentoo Linux Security Advisory GLSA 201701-67
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https://security.gentoo.org/
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Severity: Normal
Title: a2ps: Arbitrary code execution
Date: January 29, 2017
Bugs: #506352
ID: 201701-67

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Synopsis
========
A vulnerability in a2ps' fixps script might allow remote attackers to
execute arbitrary code.

Background
==========
a2ps is an Any to PostScript filter.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-text/a2ps < 4.14-r5 >= 4.14-r5

Description
===========
a2ps' fixps script does not invoke gs with the -dSAFER option.

Impact
======
Remote attackers, by enticing a user to process a specially crafted
PostScript file, could delete arbitrary files or execute arbitrary code
with the privileges of the process.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All a2ps users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/a2ps-4.14-r5"

References
==========
[ 1 ] CVE-2014-0466
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0466

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

https://security.gentoo.org/glsa/201701-67

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.

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


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