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:
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 (at) gentoo (dot) org [email concealed] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
Gentoo Linux Security Advisory GLSA 200907-01
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http://security.gentoo.org/
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Severity: Normal
Title: libwmf: User-assisted execution of arbitrary code
Date: July 02, 2009
Bugs: #268161
ID: 200907-01
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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
-------------------------------------------------------------------
1 media-libs/libwmf < 0.2.8.4-r3 >= 0.2.8.4-r3
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
==========
[ 1 ] CVE-2009-1364
http://cve.mitre.org/cgi-bin/cvename.cgi?name=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 (at) gentoo (dot) org [email concealed] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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