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Category:   Application (Generic)  >   FreeType Vendors:   freetype.org
(Red Hat Issues Fix) FreeType Bug in 't1decode.c' Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1025817
SecurityTracker URL:  http://securitytracker.com/id/1025817
CVE Reference:   CVE-2011-0226   (Links to External Site)
Date:  Jul 21 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 2.4.5
Description:   A vulnerability was reported in FreeType. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted font file that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

The vulnerability resides in 'src/psaux/t1decode.c'.

Apple iOS is affected.

The vulnerability was reported in a PDF file used to jailbreak Apple iOS devices.

A demonstration exploit is available at:

http://www.jailbreakme.com/saffron/_/iPod_4.3.3_8J2.pdf

Impact:   A remote user can create a font file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   Red Hat has issued a fix.

The Red hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2011-1085.html

Vendor URL:  www.freetype.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  6

Message History:   This archive entry is a follow-up to the message listed below.
Jul 9 2011 FreeType Bug in 't1decode.c' Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2011:1085-01] Important: freetype security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: freetype security update
Advisory ID:       RHSA-2011:1085-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1085.html
Issue date:        2011-07-21
CVE Names:         CVE-2011-0226 
=====================================================================

1. Summary:

Updated freetype packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

FreeType is a free, high-quality, portable font engine that can open and
manage font files. It also loads, hints, and renders individual glyphs
efficiently. These packages provide the FreeType 2 font engine.

A flaw was found in the way the FreeType font rendering engine processed
certain PostScript Type 1 fonts. If a user loaded a specially-crafted font
file with an application linked against FreeType, it could cause the
application to crash or, possibly, execute arbitrary code with the
privileges of the user running the application. (CVE-2011-0226)

Users are advised to upgrade to these updated packages, which contain a
backported patch to correct this issue. The X server must be restarted (log
out, then log back in) for this update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

722701 - CVE-2011-0226 freetype: postscript type1 font parsing vulnerability

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm

x86_64:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-2.3.11-6.el6_1.6.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-demos-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.6.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

x86_64:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-2.3.11-6.el6_1.6.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.6.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm

ppc64:
freetype-2.3.11-6.el6_1.6.ppc.rpm
freetype-2.3.11-6.el6_1.6.ppc64.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.ppc.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.ppc64.rpm
freetype-devel-2.3.11-6.el6_1.6.ppc.rpm
freetype-devel-2.3.11-6.el6_1.6.ppc64.rpm

s390x:
freetype-2.3.11-6.el6_1.6.s390.rpm
freetype-2.3.11-6.el6_1.6.s390x.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.s390.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.s390x.rpm
freetype-devel-2.3.11-6.el6_1.6.s390.rpm
freetype-devel-2.3.11-6.el6_1.6.s390x.rpm

x86_64:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-2.3.11-6.el6_1.6.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-demos-2.3.11-6.el6_1.6.i686.rpm

ppc64:
freetype-debuginfo-2.3.11-6.el6_1.6.ppc64.rpm
freetype-demos-2.3.11-6.el6_1.6.ppc64.rpm

s390x:
freetype-debuginfo-2.3.11-6.el6_1.6.s390x.rpm
freetype-demos-2.3.11-6.el6_1.6.s390x.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm

x86_64:
freetype-2.3.11-6.el6_1.6.i686.rpm
freetype-2.3.11-6.el6_1.6.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.6.i686.rpm
freetype-devel-2.3.11-6.el6_1.6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/freetype-2.3.11-6.el6_1.6.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.6.i686.rpm
freetype-demos-2.3.11-6.el6_1.6.i686.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.6.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.6.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-0226.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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