SpamAssassin: Arbitrary command execution

Background

SpamAssassin is an extensible email filter used to identify junk email.

Description

It was discovered that SpamAssassin incorrectly handled certain CF files.

Impact

A remote attacker could entice a user or automated system to process a specially crafted CF file using SpamAssassin, possibly resulting in execution of arbitrary commands with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All SpamAssassin users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=mail-filter/spamassassin-3.4.5"