GLSA 201701-67: a2ps: Arbitrary code execution

http://security.gentoo.org/

Severity:	normal
Title:	a2ps: Arbitrary code execution
Date:	01/29/2017
Bugs:	#506352
ID:	201701-67

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	Architecture(s)
app-text/a2ps	< 4.14-r5	>= 4.14-r5	All supported architectures

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

CVE-2014-0466

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201701-67.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 https://bugs.gentoo.org.