Subject: [ GLSA 200907-01 ] libwmf: User-assisted execution of arbitrary
code
From: Alex Legler <a3li@gentoo.org.>
To: gentoo-announce@gentoo.org
Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
security-alerts@linuxsecurity.com
Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-gKTwVFADouHQo26IFqkp"
Date: Thu, 02 Jul 2009 21:36:57 +0200
Message-Id: <1246563417.4324.0.camel@localhost.>
Mime-Version: 1.0
X-Mailer: Evolution 2.26.2
X-Virus-Scanned: antivirus-gw at tyumen.ru
--=-gKTwVFADouHQo26IFqkp
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200907-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: libwmf: User-assisted execution of arbitrary code
Date: July 02, 2009
Bugs: #268161
ID: 200907-01
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
libwmf bundles an old GD version which contains a "use-after-free"
vulnerability.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
libwmf is a library for converting WMF files.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/libwmf < 0.2.8.4-r3 >=3D 0.2.8.4-r3
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The embedded fork of the GD library introduced a "use-after-free"
vulnerability in a modification which is specific to libwmf.
Impact
=3D=3D=3D=3D=3D=3D
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
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All libwmf users should upgrade to the latest version which no longer
builds the GD library:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dmedia-libs/libwmf-0.2.8.4-r3"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2009-1364
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1364
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
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
--=-gKTwVFADouHQo26IFqkp
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: This is a digitally signed message part
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.11 (GNU/Linux)
iEYEABECAAYFAkpNDFkACgkQk+oqhfPAZGk6JACcD2e3ZNyYVos7R8PAzm7pnIIl
G94An14epnUDayUY0y1qNlBOhoIV5eyu
=KVhd
-----END PGP SIGNATURE-----
--=-gKTwVFADouHQo26IFqkp--
