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

http://security.gentoo.org/

Severity:	normal
Title:	libwmf: User-assisted execution of arbitrary code
Date:	07/02/2009
Bugs:	#268161
ID:	200907-01

Synopsis

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

Background

libwmf is a library for converting WMF files.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/libwmf	< 0.2.8.4-r3	>= 0.2.8.4-r3	All supported architectures

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

CVE-2009-1364

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200907-01.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.