fbida: Arbitrary command execution
Gentoo Linux Security Advisory
||GLSA 200608-22 / fbida
||August 23, 2006
||August 23, 2006: 01
All supported architectures
The fbgs script provided by fbida allows the execution of arbitrary code.
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
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
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.
There is no known workaround at this time.
All fbida users with the "fbcon" and "pdf" USE flags both enabled
should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/fbida-2.03-r4"