bzip2: User-assisted execution of arbitrary code

Background

bzip2 is a high-quality data compressor used extensively by Gentoo Linux.

Description

An integer overflow vulnerability has been discovered in bzip2. Please review the CVE identifier referenced below for details.

Impact

A remote attacker could entice a user to open a specially crafted compressed file using bzip2, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All bzip2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.6"