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Category:   Application (Generic)  >   FreeType Vendors:   freetype.org
(Red Hat Issues Fix) FreeType 2 Font File Processing Errors Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1024268
SecurityTracker URL:  http://securitytracker.com/id/1024268
CVE Reference:   CVE-2010-2500, CVE-2010-2527, CVE-2010-2541   (Links to External Site)
Date:  Jul 30 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.4.0 and prior versions
Description:   Several vulnerabilities were reported in FreeType 2. 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 application, will trigger a buffer overflow or other memory management or memory corruption error and execute arbitrary code on the target system. The code will run with the privileges of the target application.

An invalid memory management error in the FreeType font engine can cause code execution [CVE-2010-2498].

An integer overflow in the FreeType font engine can cause code execution [CVE-2010-2500].

Buffer overflows in the FreeType font engine can cause code execution [CVE-2010-2499, CVE-2010-2519].

Buffer overflows in the FreeType demo applications can cause code execution [CVE-2010-2527, CVE-2010-2541].

Robert Swiecki of the Google Security Team reported several of these vulnerabilities. Marek Kasik reported one of the demo application vulnerabilities.

Impact:   A remote user can create a file that, when loaded by the target application, will execute arbitrary code on the target system.
Solution:   Red Hat has issued a fix for CVE-2010-2500, CVE-2010-2527, and CVE-2010-2541.

The Red Hat advisory is available at:


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

Message History:   This archive entry is a follow-up to the message listed below.
Jul 30 2010 FreeType 2 Font File Processing Errors Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2010:0577-01] Important: freetype security update

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

Synopsis:          Important: freetype security update
Advisory ID:       RHSA-2010:0577-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0577.html
Issue date:        2010-07-30
CVE Names:         CVE-2010-2500 CVE-2010-2527 CVE-2010-2541 
=====================================================================

1. Summary:

Updated freetype packages that fix various security issues are now
available for Red Hat Enterprise Linux 3.

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - 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. These packages provide both the FreeType 1 and FreeType 2 font
engines.

An integer overflow flaw was found in the way the FreeType font engine
processed font files. If a user loaded a carefully-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-2010-2500)

Several buffer overflow flaws were found in the FreeType demo applications.
If a user loaded a carefully-crafted font file with a demo application, it
could cause the application to crash or, possibly, execute arbitrary code
with the privileges of the user running the application. (CVE-2010-2527,
CVE-2010-2541)

Red Hat would like to thank Robert Swiecki of the Google Security Team for
the discovery of the CVE-2010-2500 and CVE-2010-2527 issues.

Note: All of the issues in this erratum only affect the FreeType 2 font
engine.

Users are advised to upgrade to these updated packages, which contain
backported patches 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/):

613167 - CVE-2010-2500 freetype: integer overflow vulnerability in smooth/ftgrays.c
614557 - CVE-2010-2527 Freetype demos multiple buffer overflows
617342 - CVE-2010-2541 Freetype ftmulti buffer overflow

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/freetype-2.1.4-15.el3.src.rpm

i386:
freetype-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-devel-2.1.4-15.el3.i386.rpm

ia64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.ia64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.ia64.rpm
freetype-devel-2.1.4-15.el3.ia64.rpm

ppc:
freetype-2.1.4-15.el3.ppc.rpm
freetype-2.1.4-15.el3.ppc64.rpm
freetype-debuginfo-2.1.4-15.el3.ppc.rpm
freetype-debuginfo-2.1.4-15.el3.ppc64.rpm
freetype-devel-2.1.4-15.el3.ppc.rpm

s390:
freetype-2.1.4-15.el3.s390.rpm
freetype-debuginfo-2.1.4-15.el3.s390.rpm
freetype-devel-2.1.4-15.el3.s390.rpm

s390x:
freetype-2.1.4-15.el3.s390.rpm
freetype-2.1.4-15.el3.s390x.rpm
freetype-debuginfo-2.1.4-15.el3.s390.rpm
freetype-debuginfo-2.1.4-15.el3.s390x.rpm
freetype-devel-2.1.4-15.el3.s390x.rpm

x86_64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.x86_64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.x86_64.rpm
freetype-devel-2.1.4-15.el3.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/freetype-2.1.4-15.el3.src.rpm

i386:
freetype-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-devel-2.1.4-15.el3.i386.rpm

x86_64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.x86_64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.x86_64.rpm
freetype-devel-2.1.4-15.el3.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/freetype-2.1.4-15.el3.src.rpm

i386:
freetype-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-devel-2.1.4-15.el3.i386.rpm

ia64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.ia64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.ia64.rpm
freetype-devel-2.1.4-15.el3.ia64.rpm

x86_64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.x86_64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.x86_64.rpm
freetype-devel-2.1.4-15.el3.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/freetype-2.1.4-15.el3.src.rpm

i386:
freetype-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-devel-2.1.4-15.el3.i386.rpm

ia64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.ia64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.ia64.rpm
freetype-devel-2.1.4-15.el3.ia64.rpm

x86_64:
freetype-2.1.4-15.el3.i386.rpm
freetype-2.1.4-15.el3.x86_64.rpm
freetype-debuginfo-2.1.4-15.el3.i386.rpm
freetype-debuginfo-2.1.4-15.el3.x86_64.rpm
freetype-devel-2.1.4-15.el3.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-2010-2500.html
https://www.redhat.com/security/data/cve/CVE-2010-2527.html
https://www.redhat.com/security/data/cve/CVE-2010-2541.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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