Joined: 12 May 2004
|Posted: Sun Apr 23, 2006 9:26 pm Post subject: [ GLSA 200604-13 ] fbida: Insecure temporary file creation
|Gentoo Linux Security Advisory
Title: fbida: Insecure temporary file creation (GLSA 200604-13)
Date: April 23, 2006
fbida is vulnerable to linking attacks, potentially allowing a local user to overwrite arbitrary files.
fbida is a collection of image viewers and editors for the framebuffer console and X11.
Vulnerable: < 2.03-r3
Unaffected: >= 2.03-r3
Architectures: All supported architectures
Jan Braun has discovered that the "fbgs" script provided by fbida insecurely creates temporary files in the "/var/tmp" directory.
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.
There is no known workaround at this time.
All fbida users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/fbida-2.03-r3"
Last edited by GLSA on Sun May 07, 2006 5:01 pm; edited 1 time in total