Muttprint: Insecure temporary file usage

Background

Muttprint formats the output of mail clients to a good-looking printing using LaTeX.

Description

Dmitry E. Oboukhov reported an insecure usage of the temporary file “/tmp/muttprint.log” in the muttprint script.

Impact

A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Muttprint users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-misc/muttprint-0.72d-r1"