GLSA 200608-22 fbida: Arbitrary command execution

Gentoo Linux Security Advisory GLSA 200608-22
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http://security.gentoo.org/
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Severity: Normal
Title: fbida: Arbitrary command execution
Date: August 23, 2006
Bugs: #141684
ID: 200608-22

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Synopsis
========

The fbgs script provided by fbida allows the execution of arbitrary
code.

Background
==========

fbida is a collection of image viewers and editors for the framebuffer
console and X11. fbgs is a PostScript and PDF viewer for the linux
framebuffer console.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/fbida lt; 2.03-r4 gt;= 2.03-r4

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

Toth Andras has discovered a typographic mistake in the "fbgs" script,
shipped with fbida if the "fbcon" and "pdf" USE flags are both enabled.
This script runs "gs" without the -dSAFER option, thus allowing a
PostScript file to execute, delete or create any kind of file on the
system.

Impact
======

A remote attacker can entice a vulnerable user to view a malicious
PostScript or PDF file with fbgs, which may result with the execution
of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All fbida users with the "fbcon" and "pdf" USE flags both enabled
should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=media-gfx/fbida-2.03-r4"

References
==========

[ 1 ] CVE-2006-3119
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3119

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

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

http://security.gentoo.org/glsa/glsa-200608-22.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 2006 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