GLSA 200608-22: fbida: Arbitrary command execution

http://security.gentoo.org/

Severity:	normal
Title:	fbida: Arbitrary command execution
Date:	08/23/2006
Bugs:	#141684
ID:	200608-22

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	Architecture(s)
media-gfx/fbida	< 2.03-r4	>= 2.03-r4	All supported architectures

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 ">=media-gfx/fbida-2.03-r4"

References

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 https://bugs.gentoo.org.