fbida: Insecure temporary file creation — GLSA 200604-13

fbida is vulnerable to linking attacks, potentially allowing a local user to overwrite arbitrary files.

Affected Packages

media-gfx/fbida on all architectures
Affected versions < 2.03-r3
Unaffected versions >= 2.03-r3

Background

fbida is a collection of image viewers and editors for the framebuffer console and X11.

Description

Jan Braun has discovered that the "fbgs" script provided by fbida insecurely creates temporary files in the "/var/tmp" directory.

Impact

A local attacker could create links in the temporary file directory, pointing to a valid file somewhere on the filesystem. When an affected script is called, this could result in the file being overwritten with the rights of the user running the script.

Workaround

There is no known workaround at this time.

Resolution

All fbida users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-gfx/fbida-2.03-r3"

References

Release Date
April 23, 2006

Latest Revision
April 23, 2006: 01

Severity
normal

Exploitable
local

Bugzilla entries