exploit the possibilities

Red Hat Security Advisory 2011-1402-01

Red Hat Security Advisory 2011-1402-01
Posted Oct 25, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1402-01 - 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. The freetype packages for Red Hat Enterprise Linux 4 provide both the FreeType 1 and FreeType 2 font engines. The freetype packages for Red Hat Enterprise Linux 5 and 6 provide only the FreeType 2 font engine. Multiple input validation flaws were found in the way FreeType processed bitmap font files. If a specially-crafted font file was loaded by an application linked against FreeType, it could cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application.

tags | advisory, arbitrary
systems | linux, redhat
advisories | CVE-2011-3256
MD5 | e4860bf8dd5f4f3b4d8322e1b4712803

Red Hat Security Advisory 2011-1402-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis: Important: freetype security update
Advisory ID: RHSA-2011:1402-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1402.html
Issue date: 2011-10-25
CVE Names: CVE-2011-3256
=====================================================================

1. Summary:

Updated freetype packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4, 5, and 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:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
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 Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, 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 WS version 4 - i386, ia64, 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. The freetype packages for Red Hat Enterprise Linux 4 provide
both the FreeType 1 and FreeType 2 font engines. The freetype packages for
Red Hat Enterprise Linux 5 and 6 provide only the FreeType 2 font engine.

Multiple input validation flaws were found in the way FreeType processed
bitmap font files. If a specially-crafted font file was loaded by an
application linked against FreeType, it could cause the application to
crash or, potentially, execute arbitrary code with the privileges of the
user running the application. (CVE-2011-3256)

Note: These issues only affected the FreeType 2 font engine.

Users are advised to upgrade to these updated packages, which contain a
backported patch to correct these issues. 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/):

746226 - CVE-2011-3256 FreeType FT_Bitmap_New integer overflow to buffer overflow, FreeType TT_Vary_Get_Glyph_Deltas improper input validation

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/freetype-2.1.9-20.el4.src.rpm

i386:
freetype-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-demos-2.1.9-20.el4.i386.rpm
freetype-devel-2.1.9-20.el4.i386.rpm
freetype-utils-2.1.9-20.el4.i386.rpm

ia64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.ia64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.ia64.rpm
freetype-demos-2.1.9-20.el4.ia64.rpm
freetype-devel-2.1.9-20.el4.ia64.rpm
freetype-utils-2.1.9-20.el4.ia64.rpm

ppc:
freetype-2.1.9-20.el4.ppc.rpm
freetype-2.1.9-20.el4.ppc64.rpm
freetype-debuginfo-2.1.9-20.el4.ppc.rpm
freetype-debuginfo-2.1.9-20.el4.ppc64.rpm
freetype-demos-2.1.9-20.el4.ppc.rpm
freetype-devel-2.1.9-20.el4.ppc.rpm
freetype-utils-2.1.9-20.el4.ppc.rpm

s390:
freetype-2.1.9-20.el4.s390.rpm
freetype-debuginfo-2.1.9-20.el4.s390.rpm
freetype-demos-2.1.9-20.el4.s390.rpm
freetype-devel-2.1.9-20.el4.s390.rpm
freetype-utils-2.1.9-20.el4.s390.rpm

s390x:
freetype-2.1.9-20.el4.s390.rpm
freetype-2.1.9-20.el4.s390x.rpm
freetype-debuginfo-2.1.9-20.el4.s390.rpm
freetype-debuginfo-2.1.9-20.el4.s390x.rpm
freetype-demos-2.1.9-20.el4.s390x.rpm
freetype-devel-2.1.9-20.el4.s390x.rpm
freetype-utils-2.1.9-20.el4.s390x.rpm

x86_64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.x86_64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.x86_64.rpm
freetype-demos-2.1.9-20.el4.x86_64.rpm
freetype-devel-2.1.9-20.el4.x86_64.rpm
freetype-utils-2.1.9-20.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/freetype-2.1.9-20.el4.src.rpm

i386:
freetype-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-demos-2.1.9-20.el4.i386.rpm
freetype-devel-2.1.9-20.el4.i386.rpm
freetype-utils-2.1.9-20.el4.i386.rpm

x86_64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.x86_64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.x86_64.rpm
freetype-demos-2.1.9-20.el4.x86_64.rpm
freetype-devel-2.1.9-20.el4.x86_64.rpm
freetype-utils-2.1.9-20.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/freetype-2.1.9-20.el4.src.rpm

i386:
freetype-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-demos-2.1.9-20.el4.i386.rpm
freetype-devel-2.1.9-20.el4.i386.rpm
freetype-utils-2.1.9-20.el4.i386.rpm

ia64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.ia64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.ia64.rpm
freetype-demos-2.1.9-20.el4.ia64.rpm
freetype-devel-2.1.9-20.el4.ia64.rpm
freetype-utils-2.1.9-20.el4.ia64.rpm

x86_64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.x86_64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.x86_64.rpm
freetype-demos-2.1.9-20.el4.x86_64.rpm
freetype-devel-2.1.9-20.el4.x86_64.rpm
freetype-utils-2.1.9-20.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/freetype-2.1.9-20.el4.src.rpm

i386:
freetype-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-demos-2.1.9-20.el4.i386.rpm
freetype-devel-2.1.9-20.el4.i386.rpm
freetype-utils-2.1.9-20.el4.i386.rpm

ia64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.ia64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.ia64.rpm
freetype-demos-2.1.9-20.el4.ia64.rpm
freetype-devel-2.1.9-20.el4.ia64.rpm
freetype-utils-2.1.9-20.el4.ia64.rpm

x86_64:
freetype-2.1.9-20.el4.i386.rpm
freetype-2.1.9-20.el4.x86_64.rpm
freetype-debuginfo-2.1.9-20.el4.i386.rpm
freetype-debuginfo-2.1.9-20.el4.x86_64.rpm
freetype-demos-2.1.9-20.el4.x86_64.rpm
freetype-devel-2.1.9-20.el4.x86_64.rpm
freetype-utils-2.1.9-20.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/freetype-2.2.1-28.el5_7.1.src.rpm

i386:
freetype-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm

x86_64:
freetype-2.2.1-28.el5_7.1.i386.rpm
freetype-2.2.1-28.el5_7.1.x86_64.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/freetype-2.2.1-28.el5_7.1.src.rpm

i386:
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-demos-2.2.1-28.el5_7.1.i386.rpm
freetype-devel-2.2.1-28.el5_7.1.i386.rpm

x86_64:
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.x86_64.rpm
freetype-demos-2.2.1-28.el5_7.1.x86_64.rpm
freetype-devel-2.2.1-28.el5_7.1.i386.rpm
freetype-devel-2.2.1-28.el5_7.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/freetype-2.2.1-28.el5_7.1.src.rpm

i386:
freetype-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-demos-2.2.1-28.el5_7.1.i386.rpm
freetype-devel-2.2.1-28.el5_7.1.i386.rpm

ia64:
freetype-2.2.1-28.el5_7.1.i386.rpm
freetype-2.2.1-28.el5_7.1.ia64.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.ia64.rpm
freetype-demos-2.2.1-28.el5_7.1.ia64.rpm
freetype-devel-2.2.1-28.el5_7.1.ia64.rpm

ppc:
freetype-2.2.1-28.el5_7.1.ppc.rpm
freetype-2.2.1-28.el5_7.1.ppc64.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.ppc.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.ppc64.rpm
freetype-demos-2.2.1-28.el5_7.1.ppc.rpm
freetype-devel-2.2.1-28.el5_7.1.ppc.rpm
freetype-devel-2.2.1-28.el5_7.1.ppc64.rpm

s390x:
freetype-2.2.1-28.el5_7.1.s390.rpm
freetype-2.2.1-28.el5_7.1.s390x.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.s390.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.s390x.rpm
freetype-demos-2.2.1-28.el5_7.1.s390x.rpm
freetype-devel-2.2.1-28.el5_7.1.s390.rpm
freetype-devel-2.2.1-28.el5_7.1.s390x.rpm

x86_64:
freetype-2.2.1-28.el5_7.1.i386.rpm
freetype-2.2.1-28.el5_7.1.x86_64.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.i386.rpm
freetype-debuginfo-2.2.1-28.el5_7.1.x86_64.rpm
freetype-demos-2.2.1-28.el5_7.1.x86_64.rpm
freetype-devel-2.2.1-28.el5_7.1.i386.rpm
freetype-devel-2.2.1-28.el5_7.1.x86_64.rpm

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_1.7.src.rpm

i386:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm

x86_64:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-2.3.11-6.el6_1.7.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.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_1.7.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-demos-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.7.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.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_1.7.src.rpm

x86_64:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-2.3.11-6.el6_1.7.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.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_1.7.src.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.7.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.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_1.7.src.rpm

i386:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm

ppc64:
freetype-2.3.11-6.el6_1.7.ppc.rpm
freetype-2.3.11-6.el6_1.7.ppc64.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.ppc.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.ppc64.rpm
freetype-devel-2.3.11-6.el6_1.7.ppc.rpm
freetype-devel-2.3.11-6.el6_1.7.ppc64.rpm

s390x:
freetype-2.3.11-6.el6_1.7.s390.rpm
freetype-2.3.11-6.el6_1.7.s390x.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.s390.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.s390x.rpm
freetype-devel-2.3.11-6.el6_1.7.s390.rpm
freetype-devel-2.3.11-6.el6_1.7.s390x.rpm

x86_64:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-2.3.11-6.el6_1.7.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.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_1.7.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-demos-2.3.11-6.el6_1.7.i686.rpm

ppc64:
freetype-debuginfo-2.3.11-6.el6_1.7.ppc64.rpm
freetype-demos-2.3.11-6.el6_1.7.ppc64.rpm

s390x:
freetype-debuginfo-2.3.11-6.el6_1.7.s390x.rpm
freetype-demos-2.3.11-6.el6_1.7.s390x.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.7.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_1.7.src.rpm

i386:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm

x86_64:
freetype-2.3.11-6.el6_1.7.i686.rpm
freetype-2.3.11-6.el6_1.7.x86_64.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-devel-2.3.11-6.el6_1.7.i686.rpm
freetype-devel-2.3.11-6.el6_1.7.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_1.7.src.rpm

i386:
freetype-debuginfo-2.3.11-6.el6_1.7.i686.rpm
freetype-demos-2.3.11-6.el6_1.7.i686.rpm

x86_64:
freetype-debuginfo-2.3.11-6.el6_1.7.x86_64.rpm
freetype-demos-2.3.11-6.el6_1.7.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-2011-3256.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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