libwmf: User-assisted execution of arbitrary code — GLSA 200907-01

libwmf bundles an old GD version which contains a "use-after-free" vulnerability.

Affected Packages

media-libs/libwmf on all architectures
Affected versions < 0.2.8.4-r3
Unaffected versions >= 0.2.8.4-r3

Background

libwmf is a library for converting WMF files.

Description

The embedded fork of the GD library introduced a "use-after-free" vulnerability in a modification which is specific to libwmf.

Impact

A remote attacker could entice a user to open a specially crafted WMF file, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All libwmf users should upgrade to the latest version which no longer builds the GD library:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-libs/libwmf-0.2.8.4-r3"

References

Release Date
July 02, 2009

Latest Revision
July 02, 2009: 01

Severity
normal

Exploitable
remote

Bugzilla entries