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Category:   Application (Generic)  >   FreeType Vendors:   freetype.org
(Red Hat Issues Fix) FreeType 2 Font Rendering Engine Stack Overflows Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1024284
SecurityTracker URL:  http://securitytracker.com/id/1024284
CVE Reference:   CVE-2010-1797   (Links to External Site)
Date:  Aug 5 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 2.4.1 and prior versions
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 font file containing specially crafted Compact Font Format (CFF) opcodes that, when processed by the target application, will trigger a stack overflow and execute arbitrary code on the target system. The code will run with the privileges of the target application.

[Editor's note: This is one of the vulnerabilities used in the 'jailbreakme.com' iPhone iOS jail break site.]

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

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2010-0607.html

Vendor URL:  www.freetype.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  3, 4, 5

Message History:   This archive entry is a follow-up to the message listed below.
Aug 5 2010 FreeType 2 Font Rendering Engine Stack Overflows Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2010:0607-02] Important: freetype security update

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

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

Synopsis:          Important: freetype security update
Advisory ID:       RHSA-2010:0607-02
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0607.html
Issue date:        2010-08-05
CVE Names:         CVE-2010-1797 
=====================================================================

1. Summary:

Updated freetype packages that fix two security issues are now available
for Red Hat Enterprise Linux 3, 4, and 5.

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 Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, 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 version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, 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 3 and 4
provide both the FreeType 1 and FreeType 2 font engines. The freetype
packages for Red Hat Enterprise Linux 5 provide only the FreeType 2 font
engine.

Two stack overflow flaws were found in the way the FreeType font engine
processed certain Compact Font Format (CFF) character strings (opcodes). 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-2010-1797)

Red Hat would like to thank Braden Thomas of the Apple Product Security
team for reporting these issues.

Note: CVE-2010-1797 only affects 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
http://kbase.redhat.com/faq/docs/DOC-11259

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

621144 - CVE-2010-1797 FreeType: Multiple stack overflows by processing CFF opcodes

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/freetype-2.1.4-16.el3.src.rpm

i386:
freetype-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-devel-2.1.4-16.el3.i386.rpm

ia64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.ia64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.ia64.rpm
freetype-devel-2.1.4-16.el3.ia64.rpm

ppc:
freetype-2.1.4-16.el3.ppc.rpm
freetype-2.1.4-16.el3.ppc64.rpm
freetype-debuginfo-2.1.4-16.el3.ppc.rpm
freetype-debuginfo-2.1.4-16.el3.ppc64.rpm
freetype-devel-2.1.4-16.el3.ppc.rpm

s390:
freetype-2.1.4-16.el3.s390.rpm
freetype-debuginfo-2.1.4-16.el3.s390.rpm
freetype-devel-2.1.4-16.el3.s390.rpm

s390x:
freetype-2.1.4-16.el3.s390.rpm
freetype-2.1.4-16.el3.s390x.rpm
freetype-debuginfo-2.1.4-16.el3.s390.rpm
freetype-debuginfo-2.1.4-16.el3.s390x.rpm
freetype-devel-2.1.4-16.el3.s390x.rpm

x86_64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.x86_64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.x86_64.rpm
freetype-devel-2.1.4-16.el3.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/freetype-2.1.4-16.el3.src.rpm

i386:
freetype-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-devel-2.1.4-16.el3.i386.rpm

x86_64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.x86_64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.x86_64.rpm
freetype-devel-2.1.4-16.el3.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/freetype-2.1.4-16.el3.src.rpm

i386:
freetype-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-devel-2.1.4-16.el3.i386.rpm

ia64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.ia64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.ia64.rpm
freetype-devel-2.1.4-16.el3.ia64.rpm

x86_64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.x86_64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.x86_64.rpm
freetype-devel-2.1.4-16.el3.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/freetype-2.1.4-16.el3.src.rpm

i386:
freetype-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-devel-2.1.4-16.el3.i386.rpm

ia64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.ia64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.ia64.rpm
freetype-devel-2.1.4-16.el3.ia64.rpm

x86_64:
freetype-2.1.4-16.el3.i386.rpm
freetype-2.1.4-16.el3.x86_64.rpm
freetype-debuginfo-2.1.4-16.el3.i386.rpm
freetype-debuginfo-2.1.4-16.el3.x86_64.rpm
freetype-devel-2.1.4-16.el3.x86_64.rpm

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/freetype-2.1.9-15.el4.8.src.rpm

i386:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-demos-2.1.9-15.el4.8.i386.rpm
freetype-devel-2.1.9-15.el4.8.i386.rpm
freetype-utils-2.1.9-15.el4.8.i386.rpm

ia64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.ia64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.ia64.rpm
freetype-demos-2.1.9-15.el4.8.ia64.rpm
freetype-devel-2.1.9-15.el4.8.ia64.rpm
freetype-utils-2.1.9-15.el4.8.ia64.rpm

ppc:
freetype-2.1.9-15.el4.8.ppc.rpm
freetype-2.1.9-15.el4.8.ppc64.rpm
freetype-debuginfo-2.1.9-15.el4.8.ppc.rpm
freetype-debuginfo-2.1.9-15.el4.8.ppc64.rpm
freetype-demos-2.1.9-15.el4.8.ppc.rpm
freetype-devel-2.1.9-15.el4.8.ppc.rpm
freetype-utils-2.1.9-15.el4.8.ppc.rpm

s390:
freetype-2.1.9-15.el4.8.s390.rpm
freetype-debuginfo-2.1.9-15.el4.8.s390.rpm
freetype-demos-2.1.9-15.el4.8.s390.rpm
freetype-devel-2.1.9-15.el4.8.s390.rpm
freetype-utils-2.1.9-15.el4.8.s390.rpm

s390x:
freetype-2.1.9-15.el4.8.s390.rpm
freetype-2.1.9-15.el4.8.s390x.rpm
freetype-debuginfo-2.1.9-15.el4.8.s390.rpm
freetype-debuginfo-2.1.9-15.el4.8.s390x.rpm
freetype-demos-2.1.9-15.el4.8.s390x.rpm
freetype-devel-2.1.9-15.el4.8.s390x.rpm
freetype-utils-2.1.9-15.el4.8.s390x.rpm

x86_64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.x86_64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.x86_64.rpm
freetype-demos-2.1.9-15.el4.8.x86_64.rpm
freetype-devel-2.1.9-15.el4.8.x86_64.rpm
freetype-utils-2.1.9-15.el4.8.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/freetype-2.1.9-15.el4.8.src.rpm

i386:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-demos-2.1.9-15.el4.8.i386.rpm
freetype-devel-2.1.9-15.el4.8.i386.rpm
freetype-utils-2.1.9-15.el4.8.i386.rpm

x86_64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.x86_64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.x86_64.rpm
freetype-demos-2.1.9-15.el4.8.x86_64.rpm
freetype-devel-2.1.9-15.el4.8.x86_64.rpm
freetype-utils-2.1.9-15.el4.8.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/freetype-2.1.9-15.el4.8.src.rpm

i386:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-demos-2.1.9-15.el4.8.i386.rpm
freetype-devel-2.1.9-15.el4.8.i386.rpm
freetype-utils-2.1.9-15.el4.8.i386.rpm

ia64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.ia64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.ia64.rpm
freetype-demos-2.1.9-15.el4.8.ia64.rpm
freetype-devel-2.1.9-15.el4.8.ia64.rpm
freetype-utils-2.1.9-15.el4.8.ia64.rpm

x86_64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.x86_64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.x86_64.rpm
freetype-demos-2.1.9-15.el4.8.x86_64.rpm
freetype-devel-2.1.9-15.el4.8.x86_64.rpm
freetype-utils-2.1.9-15.el4.8.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/freetype-2.1.9-15.el4.8.src.rpm

i386:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-demos-2.1.9-15.el4.8.i386.rpm
freetype-devel-2.1.9-15.el4.8.i386.rpm
freetype-utils-2.1.9-15.el4.8.i386.rpm

ia64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.ia64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.ia64.rpm
freetype-demos-2.1.9-15.el4.8.ia64.rpm
freetype-devel-2.1.9-15.el4.8.ia64.rpm
freetype-utils-2.1.9-15.el4.8.ia64.rpm

x86_64:
freetype-2.1.9-15.el4.8.i386.rpm
freetype-2.1.9-15.el4.8.x86_64.rpm
freetype-debuginfo-2.1.9-15.el4.8.i386.rpm
freetype-debuginfo-2.1.9-15.el4.8.x86_64.rpm
freetype-demos-2.1.9-15.el4.8.x86_64.rpm
freetype-devel-2.1.9-15.el4.8.x86_64.rpm
freetype-utils-2.1.9-15.el4.8.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-2.2.1-26.el5_5.src.rpm

i386:
freetype-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm

x86_64:
freetype-2.2.1-26.el5_5.i386.rpm
freetype-2.2.1-26.el5_5.x86_64.rpm
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/freetype-2.2.1-26.el5_5.src.rpm

i386:
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-demos-2.2.1-26.el5_5.i386.rpm
freetype-devel-2.2.1-26.el5_5.i386.rpm

x86_64:
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.x86_64.rpm
freetype-demos-2.2.1-26.el5_5.x86_64.rpm
freetype-devel-2.2.1-26.el5_5.i386.rpm
freetype-devel-2.2.1-26.el5_5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/freetype-2.2.1-26.el5_5.src.rpm

i386:
freetype-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-demos-2.2.1-26.el5_5.i386.rpm
freetype-devel-2.2.1-26.el5_5.i386.rpm

ia64:
freetype-2.2.1-26.el5_5.i386.rpm
freetype-2.2.1-26.el5_5.ia64.rpm
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.ia64.rpm
freetype-demos-2.2.1-26.el5_5.ia64.rpm
freetype-devel-2.2.1-26.el5_5.ia64.rpm

ppc:
freetype-2.2.1-26.el5_5.ppc.rpm
freetype-2.2.1-26.el5_5.ppc64.rpm
freetype-debuginfo-2.2.1-26.el5_5.ppc.rpm
freetype-debuginfo-2.2.1-26.el5_5.ppc64.rpm
freetype-demos-2.2.1-26.el5_5.ppc.rpm
freetype-devel-2.2.1-26.el5_5.ppc.rpm
freetype-devel-2.2.1-26.el5_5.ppc64.rpm

s390x:
freetype-2.2.1-26.el5_5.s390.rpm
freetype-2.2.1-26.el5_5.s390x.rpm
freetype-debuginfo-2.2.1-26.el5_5.s390.rpm
freetype-debuginfo-2.2.1-26.el5_5.s390x.rpm
freetype-demos-2.2.1-26.el5_5.s390x.rpm
freetype-devel-2.2.1-26.el5_5.s390.rpm
freetype-devel-2.2.1-26.el5_5.s390x.rpm

x86_64:
freetype-2.2.1-26.el5_5.i386.rpm
freetype-2.2.1-26.el5_5.x86_64.rpm
freetype-debuginfo-2.2.1-26.el5_5.i386.rpm
freetype-debuginfo-2.2.1-26.el5_5.x86_64.rpm
freetype-demos-2.2.1-26.el5_5.x86_64.rpm
freetype-devel-2.2.1-26.el5_5.i386.rpm
freetype-devel-2.2.1-26.el5_5.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://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-1797.html
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2010 Red Hat, Inc.
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