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Category:   Application (Generic)  >   Pango Vendors:   pango.org
(Red Hat Issues Fix) Pango GDEF Array Indexing Error in Font Library Lets Users Deny Service
SecurityTracker Alert ID:  1023712
SecurityTracker URL:  http://securitytracker.com/id/1023712
CVE Reference:   CVE-2010-0421   (Links to External Site)
Date:  Mar 16 2010
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.27.1
Description:   A vulnerability was reported in Pango. A remote or local user can cause denial of service conditions.

A remote or local user can create a specially crafted font file that, when loaded by the target user via an application that uses the Pango font rendering library, will trigger an array indexing error in the generation of Glyph Definition tables (GDEF) and cause the target application to crash.

Marc Schoenefeld reported this vulnerability.

Impact:   A remote or local user can create a font file that, when loaded by the target application, will cause the target application to crash.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2010-0140.html

Vendor URL:  www.pango.org/ (Links to External Site)
Cause:   Access control 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.
Mar 16 2010 Pango GDEF Array Indexing Error in Font Library Lets Users Deny Service



 Source Message Contents

Subject:  [RHSA-2010:0140-01] Moderate: pango security update

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

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

Synopsis:          Moderate: pango security update
Advisory ID:       RHSA-2010:0140-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0140.html
Issue date:        2010-03-15
CVE Names:         CVE-2010-0421 
=====================================================================

1. Summary:

Updated pango and evolution28-pango packages that fix one security issue
are now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

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:

Pango is a library used for the layout and rendering of internationalized
text.

An input sanitization flaw, leading to an array index error, was found in
the way the Pango font rendering library synthesized the Glyph Definition
(GDEF) table from a font's character map and the Unicode property database.
If an attacker created a specially-crafted font file and tricked a local,
unsuspecting user into loading the font file in an application that uses
the Pango font rendering library, it could cause that application to crash.
(CVE-2010-0421)

Users of pango and evolution28-pango are advised to upgrade to these
updated packages, which contain a backported patch to resolve this issue.
After installing this update, you must restart your system or restart your
X session 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/):

555831 - CVE-2010-0421 libpangoft2 segfaults on forged font files

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/pango-1.2.5-10.src.rpm

i386:
pango-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-devel-1.2.5-10.i386.rpm

ia64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.ia64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.ia64.rpm
pango-devel-1.2.5-10.ia64.rpm

ppc:
pango-1.2.5-10.ppc.rpm
pango-1.2.5-10.ppc64.rpm
pango-debuginfo-1.2.5-10.ppc.rpm
pango-debuginfo-1.2.5-10.ppc64.rpm
pango-devel-1.2.5-10.ppc.rpm

s390:
pango-1.2.5-10.s390.rpm
pango-debuginfo-1.2.5-10.s390.rpm
pango-devel-1.2.5-10.s390.rpm

s390x:
pango-1.2.5-10.s390.rpm
pango-1.2.5-10.s390x.rpm
pango-debuginfo-1.2.5-10.s390.rpm
pango-debuginfo-1.2.5-10.s390x.rpm
pango-devel-1.2.5-10.s390x.rpm

x86_64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.x86_64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.x86_64.rpm
pango-devel-1.2.5-10.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/pango-1.2.5-10.src.rpm

i386:
pango-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-devel-1.2.5-10.i386.rpm

x86_64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.x86_64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.x86_64.rpm
pango-devel-1.2.5-10.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/pango-1.2.5-10.src.rpm

i386:
pango-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-devel-1.2.5-10.i386.rpm

ia64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.ia64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.ia64.rpm
pango-devel-1.2.5-10.ia64.rpm

x86_64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.x86_64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.x86_64.rpm
pango-devel-1.2.5-10.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/pango-1.2.5-10.src.rpm

i386:
pango-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-devel-1.2.5-10.i386.rpm

ia64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.ia64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.ia64.rpm
pango-devel-1.2.5-10.ia64.rpm

x86_64:
pango-1.2.5-10.i386.rpm
pango-1.2.5-10.x86_64.rpm
pango-debuginfo-1.2.5-10.i386.rpm
pango-debuginfo-1.2.5-10.x86_64.rpm
pango-devel-1.2.5-10.x86_64.rpm

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/evolution28-pango-1.14.9-13.el4_8.src.rpm
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/pango-1.6.0-16.el4_8.src.rpm

i386:
evolution28-pango-1.14.9-13.el4_8.i386.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.i386.rpm
evolution28-pango-devel-1.14.9-13.el4_8.i386.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-devel-1.6.0-16.el4_8.i386.rpm

ia64:
evolution28-pango-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.ia64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.ia64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.ia64.rpm
pango-devel-1.6.0-16.el4_8.ia64.rpm

ppc:
evolution28-pango-1.14.9-13.el4_8.ppc.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.ppc.rpm
evolution28-pango-devel-1.14.9-13.el4_8.ppc.rpm
pango-1.6.0-16.el4_8.ppc.rpm
pango-1.6.0-16.el4_8.ppc64.rpm
pango-debuginfo-1.6.0-16.el4_8.ppc.rpm
pango-debuginfo-1.6.0-16.el4_8.ppc64.rpm
pango-devel-1.6.0-16.el4_8.ppc.rpm

s390:
evolution28-pango-1.14.9-13.el4_8.s390.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.s390.rpm
evolution28-pango-devel-1.14.9-13.el4_8.s390.rpm
pango-1.6.0-16.el4_8.s390.rpm
pango-debuginfo-1.6.0-16.el4_8.s390.rpm
pango-devel-1.6.0-16.el4_8.s390.rpm

s390x:
evolution28-pango-1.14.9-13.el4_8.s390x.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.s390x.rpm
evolution28-pango-devel-1.14.9-13.el4_8.s390x.rpm
pango-1.6.0-16.el4_8.s390.rpm
pango-1.6.0-16.el4_8.s390x.rpm
pango-debuginfo-1.6.0-16.el4_8.s390.rpm
pango-debuginfo-1.6.0-16.el4_8.s390x.rpm
pango-devel-1.6.0-16.el4_8.s390x.rpm

x86_64:
evolution28-pango-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.x86_64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.x86_64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.x86_64.rpm
pango-devel-1.6.0-16.el4_8.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/evolution28-pango-1.14.9-13.el4_8.src.rpm
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/pango-1.6.0-16.el4_8.src.rpm

i386:
evolution28-pango-1.14.9-13.el4_8.i386.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.i386.rpm
evolution28-pango-devel-1.14.9-13.el4_8.i386.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-devel-1.6.0-16.el4_8.i386.rpm

x86_64:
evolution28-pango-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.x86_64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.x86_64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.x86_64.rpm
pango-devel-1.6.0-16.el4_8.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/evolution28-pango-1.14.9-13.el4_8.src.rpm
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/pango-1.6.0-16.el4_8.src.rpm

i386:
evolution28-pango-1.14.9-13.el4_8.i386.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.i386.rpm
evolution28-pango-devel-1.14.9-13.el4_8.i386.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-devel-1.6.0-16.el4_8.i386.rpm

ia64:
evolution28-pango-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.ia64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.ia64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.ia64.rpm
pango-devel-1.6.0-16.el4_8.ia64.rpm

x86_64:
evolution28-pango-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.x86_64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.x86_64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.x86_64.rpm
pango-devel-1.6.0-16.el4_8.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/evolution28-pango-1.14.9-13.el4_8.src.rpm
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/pango-1.6.0-16.el4_8.src.rpm

i386:
evolution28-pango-1.14.9-13.el4_8.i386.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.i386.rpm
evolution28-pango-devel-1.14.9-13.el4_8.i386.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-devel-1.6.0-16.el4_8.i386.rpm

ia64:
evolution28-pango-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.ia64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.ia64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.ia64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.ia64.rpm
pango-devel-1.6.0-16.el4_8.ia64.rpm

x86_64:
evolution28-pango-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-debuginfo-1.14.9-13.el4_8.x86_64.rpm
evolution28-pango-devel-1.14.9-13.el4_8.x86_64.rpm
pango-1.6.0-16.el4_8.i386.rpm
pango-1.6.0-16.el4_8.x86_64.rpm
pango-debuginfo-1.6.0-16.el4_8.i386.rpm
pango-debuginfo-1.6.0-16.el4_8.x86_64.rpm
pango-devel-1.6.0-16.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/pango-1.14.9-8.el5.src.rpm

i386:
pango-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.i386.rpm

x86_64:
pango-1.14.9-8.el5.i386.rpm
pango-1.14.9-8.el5.x86_64.rpm
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/pango-1.14.9-8.el5.src.rpm

i386:
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-devel-1.14.9-8.el5.i386.rpm

x86_64:
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.x86_64.rpm
pango-devel-1.14.9-8.el5.i386.rpm
pango-devel-1.14.9-8.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/pango-1.14.9-8.el5.src.rpm

i386:
pango-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-devel-1.14.9-8.el5.i386.rpm

ia64:
pango-1.14.9-8.el5.i386.rpm
pango-1.14.9-8.el5.ia64.rpm
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.ia64.rpm
pango-devel-1.14.9-8.el5.ia64.rpm

ppc:
pango-1.14.9-8.el5.ppc.rpm
pango-1.14.9-8.el5.ppc64.rpm
pango-debuginfo-1.14.9-8.el5.ppc.rpm
pango-debuginfo-1.14.9-8.el5.ppc64.rpm
pango-devel-1.14.9-8.el5.ppc.rpm
pango-devel-1.14.9-8.el5.ppc64.rpm

s390x:
pango-1.14.9-8.el5.s390.rpm
pango-1.14.9-8.el5.s390x.rpm
pango-debuginfo-1.14.9-8.el5.s390.rpm
pango-debuginfo-1.14.9-8.el5.s390x.rpm
pango-devel-1.14.9-8.el5.s390.rpm
pango-devel-1.14.9-8.el5.s390x.rpm

x86_64:
pango-1.14.9-8.el5.i386.rpm
pango-1.14.9-8.el5.x86_64.rpm
pango-debuginfo-1.14.9-8.el5.i386.rpm
pango-debuginfo-1.14.9-8.el5.x86_64.rpm
pango-devel-1.14.9-8.el5.i386.rpm
pango-devel-1.14.9-8.el5.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-2010-0421.html
http://www.redhat.com/security/updates/classification/#moderate

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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