From: Robert Buchholz <rbu@gentoo.org.>
To: [email protected]Subject: [ GLSA 200806-10 ] FreeType: User-assisted execution of arbitrary code
Date: Tue, 24 Jun 2008 02:01:30 +0200
User-Agent: KMail/1.9.9
Cc: [email protected], [email protected],
[email protected]
MIME-Version: 1.0
Content-Type: multipart/signed;
boundary="nextPart67465189.ME4cKaNkSD";
protocol="application/pgp-signature";
micalg=pgp-sha1
Content-Transfer-Encoding: 7bit
Message-Id: <200806240201.33058.rbu@gentoo.org.>
X-Virus-Scanned: antivirus-gw at tyumen.ru
--nextPart67465189.ME4cKaNkSD
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200806-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: FreeType: User-assisted execution of arbitrary code
Date: June 23, 2008
Bugs: #225851
ID: 200806-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
========
Font parsing vulnerabilities in FreeType might lead to user-assisted
execution of arbitrary code.
Background
==========
FreeType is a font rendering library for TrueType Font (TTF) and
Printer Font Binary (PFB).
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/freetype < 2.3.6 >= 2.3.6
Description
===========
Regenrecht reported multiple vulnerabilities in FreeType via iDefense:
* An integer overflow when parsing values in the Private dictionary
table in a PFB file, leading to a heap-based buffer overflow
(CVE-2008-1806).
* An invalid free() call related to parsing an invalid "number of
axes" field in a PFB file (CVE-2008-1807).
* Multiple off-by-one errors when parsing PBF and TTF files, leading
to heap-based buffer overflows (CVE-2008-1808).
Impact
======
A remote attacker could entice a user to open a specially crafted TTF
or PBF file, possibly resulting in the execution of arbitrary code with
the privileges of the user running an application linked against
FreeType (such as the X.org X server, running as root).
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All FreeType users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/freetype-2.3.6"
References
==========
[ 1 ] CVE-2008-1806
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1806
[ 2 ] CVE-2008-1807
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1807
[ 3 ] CVE-2008-1808
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1808
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200806-10.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
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2008 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
--nextPart67465189.ME4cKaNkSD
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: This is a digitally signed message part.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)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=it/J
-----END PGP SIGNATURE-----
--nextPart67465189.ME4cKaNkSD--
