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                   Red Hat Security Advisory

Synopsis:          Updated gtk2 packages fix security flaws and bugs
Advisory ID:       RHSA-2004:466-01
Issue date:        2004-09-15
Updated on:        2004-09-15
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2004-0753 CAN-2004-0782 CAN-2004-0783 CAN-2004-0788
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1. Summary:

Updated gtk2 packages that fix several security flaws and bugs are now
available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, 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. Problem description:

The gtk2 package contains the GIMP ToolKit (GTK+), a library for creating
graphical user interfaces for the X Window System.

During testing of a previously fixed flaw in Qt (CAN-2004-0691), a flaw was
discovered in the BMP image processor of gtk2.  An attacker could create a
carefully crafted BMP file which would cause an application to enter an
infinite loop and not respond to user input when the file was opened by a
victim.  The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2004-0753 to this issue.

During a security audit Chris Evans discovered a stack and a heap overflow
in the XPM image decoder.  An attacker could create a carefully crafted XPM
file which could cause an application linked with gtk2 to crash or possibly
execute arbitrary code when the file was opened by a victim.
(CAN-2004-0782, CAN-2004-0783)

Chris Evans also discovered an integer overflow in the ICO image decoder.
An attacker could create a carefully crafted ICO file which could cause an
application linked with gtk2 to crash when the file was opened by a victim.
(CAN-2004-0788)

This updated gtk2 package also fixes a few key combination bugs on various
X servers, such as Hummingbird, ReflectionX, and X-Win32. If a server was
configured to use the Swiss German, Swiss French, or France French keyboard
layouts, Mode_Switched characters were unable to be entered within GTK
based applications.

Users of gtk2 are advised to upgrade to these packages which contain
backported patches and are not vulnerable to these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  Use Red Hat
Network to download and update your packages.  To launch the Red Hat
Update Agent, use the following command:

    up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

     http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed  (http://bugzilla.redhat.com/ for more info):

130450 - CAN-2004-0753 bmp image loader DOS

6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS: 

6ac62a2aeab6c7a99ff4b3a657530f89  gtk2-2.2.4-8.1.src.rpm

i386:
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
2d0c1fe11fc0a9a165debb0cbac24b4e  gtk2-devel-2.2.4-8.1.i386.rpm

ia64:
b3b57ef2a9b4c577cad9639fd194db14  gtk2-2.2.4-8.1.ia64.rpm
cf89006e9943f4b23aeb7a410c91c542  gtk2-devel-2.2.4-8.1.ia64.rpm

ppc:
766df9da1dca48a5f110dc96b9c29015  gtk2-2.2.4-8.1.ppc.rpm
eadbbab509000019eae608a8748cfbde  gtk2-devel-2.2.4-8.1.ppc.rpm

s390:
a3692edac044b25e4c8c2012437888e7  gtk2-2.2.4-8.1.s390.rpm
f1821966b229cd61264b9af61fafdb88  gtk2-devel-2.2.4-8.1.s390.rpm

s390x:
e45909f903fc90707ef451051d31853c  gtk2-2.2.4-8.1.s390x.rpm
4190a6fdeed17fe104def7551c1ea51e  gtk2-devel-2.2.4-8.1.s390x.rpm

x86_64:
7c5c8d7447e340310576c2909985268c  gtk2-2.2.4-8.1.x86_64.rpm
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
8ebd7aea9fe419a1e60c1405fae01f5a  gtk2-devel-2.2.4-8.1.x86_64.rpm

Red Hat Desktop version 3:

SRPMS: 

6ac62a2aeab6c7a99ff4b3a657530f89  gtk2-2.2.4-8.1.src.rpm

i386:
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
2d0c1fe11fc0a9a165debb0cbac24b4e  gtk2-devel-2.2.4-8.1.i386.rpm

x86_64:
7c5c8d7447e340310576c2909985268c  gtk2-2.2.4-8.1.x86_64.rpm
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
8ebd7aea9fe419a1e60c1405fae01f5a  gtk2-devel-2.2.4-8.1.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS: 

6ac62a2aeab6c7a99ff4b3a657530f89  gtk2-2.2.4-8.1.src.rpm

i386:
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
2d0c1fe11fc0a9a165debb0cbac24b4e  gtk2-devel-2.2.4-8.1.i386.rpm

ia64:
b3b57ef2a9b4c577cad9639fd194db14  gtk2-2.2.4-8.1.ia64.rpm
cf89006e9943f4b23aeb7a410c91c542  gtk2-devel-2.2.4-8.1.ia64.rpm

x86_64:
7c5c8d7447e340310576c2909985268c  gtk2-2.2.4-8.1.x86_64.rpm
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
8ebd7aea9fe419a1e60c1405fae01f5a  gtk2-devel-2.2.4-8.1.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS: 

6ac62a2aeab6c7a99ff4b3a657530f89  gtk2-2.2.4-8.1.src.rpm

i386:
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
2d0c1fe11fc0a9a165debb0cbac24b4e  gtk2-devel-2.2.4-8.1.i386.rpm

ia64:
b3b57ef2a9b4c577cad9639fd194db14  gtk2-2.2.4-8.1.ia64.rpm
cf89006e9943f4b23aeb7a410c91c542  gtk2-devel-2.2.4-8.1.ia64.rpm

x86_64:
7c5c8d7447e340310576c2909985268c  gtk2-2.2.4-8.1.x86_64.rpm
37607c300bef5d9dd9858474031f582c  gtk2-2.2.4-8.1.i386.rpm
8ebd7aea9fe419a1e60c1405fae01f5a  gtk2-devel-2.2.4-8.1.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
 

7. References:
 
Bug 150601 – Bad BMP files can cause gdk-pixbuf loader to sit in an infinite loop 
Bug 144808 – AltGr combinations don't work with some X servers 
CVE -CVE-2004-0753 
CVE -CVE-2004-0782 
CVE -CVE-2004-0783 
CVE -CVE-2004-0788

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at  

Copyright 2004 Red Hat, Inc.