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Category:   Application (Generic)  >   libpng Vendors:   libpng.sourceforge.net
(Red Hat Issues Fix) libpng Memory Error May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1021794
SecurityTracker URL:  http://securitytracker.com/id/1021794
CVE Reference:   CVE-2009-0040   (Links to External Site)
Date:  Mar 4 2009
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.0.43 and 1.2.35
Description:   A vulnerability was reported in libpng. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted PNG image file that, when processed by the target application, will cause libpng to attempt to free uninitialized memory and potentially execute arbitrary code on the target system. The code will run with the privileges of the target application.



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 released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2009-0340.html

Vendor URL:  libpng.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Mar 4 2009 libpng Memory Error May Let Remote Users Execute Arbitrary Code



 Source Message Contents

Date:  Wed, 4 Mar 2009 15:22:59 -0500
Subject:  [RHSA-2009:0340-01] Moderate: libpng security update


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

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

Synopsis:          Moderate: libpng security update
Advisory ID:       RHSA-2009:0340-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2009-0340.html
Issue date:        2009-03-04
CVE Names:         CVE-2009-0040 
=====================================================================

1. Summary:

Updated libpng and libpng10 packages that fix a security issue are now
available for Red Hat Enterprise Linux 3.

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

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:

The libpng packages contain a library of functions for creating and
manipulating PNG (Portable Network Graphics) image format files.

A flaw was discovered in libpng that could result in libpng trying to
free() random memory if certain, unlikely error conditions occurred. If a
carefully-crafted PNG file was loaded by an application linked against
libpng, it could cause the application to crash or, potentially, execute
arbitrary code with the privileges of the user running the application.
(CVE-2009-0040)

Users of libpng and libpng10 should upgrade to these updated packages,
which contain backported patches to correct these issues. All running
applications using libpng or libpng10 must be restarted for the update to
take effect.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via 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/):

486355 - CVE-2009-0040 libpng arbitrary free() flaw

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libpng-1.2.2-29.src.rpm
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libpng10-1.0.13-20.src.rpm

i386:
libpng-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-devel-1.2.2-29.i386.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-devel-1.0.13-20.i386.rpm

ia64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.ia64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.ia64.rpm
libpng-devel-1.2.2-29.ia64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.ia64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.ia64.rpm
libpng10-devel-1.0.13-20.ia64.rpm

ppc:
libpng-1.2.2-29.ppc.rpm
libpng-1.2.2-29.ppc64.rpm
libpng-debuginfo-1.2.2-29.ppc.rpm
libpng-debuginfo-1.2.2-29.ppc64.rpm
libpng-devel-1.2.2-29.ppc.rpm
libpng10-1.0.13-20.ppc.rpm
libpng10-1.0.13-20.ppc64.rpm
libpng10-debuginfo-1.0.13-20.ppc.rpm
libpng10-debuginfo-1.0.13-20.ppc64.rpm
libpng10-devel-1.0.13-20.ppc.rpm

s390:
libpng-1.2.2-29.s390.rpm
libpng-debuginfo-1.2.2-29.s390.rpm
libpng-devel-1.2.2-29.s390.rpm
libpng10-1.0.13-20.s390.rpm
libpng10-debuginfo-1.0.13-20.s390.rpm
libpng10-devel-1.0.13-20.s390.rpm

s390x:
libpng-1.2.2-29.s390.rpm
libpng-1.2.2-29.s390x.rpm
libpng-debuginfo-1.2.2-29.s390.rpm
libpng-debuginfo-1.2.2-29.s390x.rpm
libpng-devel-1.2.2-29.s390x.rpm
libpng10-1.0.13-20.s390.rpm
libpng10-1.0.13-20.s390x.rpm
libpng10-debuginfo-1.0.13-20.s390.rpm
libpng10-debuginfo-1.0.13-20.s390x.rpm
libpng10-devel-1.0.13-20.s390x.rpm

x86_64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.x86_64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.x86_64.rpm
libpng-devel-1.2.2-29.x86_64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.x86_64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.x86_64.rpm
libpng10-devel-1.0.13-20.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libpng-1.2.2-29.src.rpm
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libpng10-1.0.13-20.src.rpm

i386:
libpng-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-devel-1.2.2-29.i386.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-devel-1.0.13-20.i386.rpm

x86_64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.x86_64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.x86_64.rpm
libpng-devel-1.2.2-29.x86_64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.x86_64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.x86_64.rpm
libpng10-devel-1.0.13-20.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libpng-1.2.2-29.src.rpm
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libpng10-1.0.13-20.src.rpm

i386:
libpng-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-devel-1.2.2-29.i386.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-devel-1.0.13-20.i386.rpm

ia64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.ia64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.ia64.rpm
libpng-devel-1.2.2-29.ia64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.ia64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.ia64.rpm
libpng10-devel-1.0.13-20.ia64.rpm

x86_64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.x86_64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.x86_64.rpm
libpng-devel-1.2.2-29.x86_64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.x86_64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.x86_64.rpm
libpng10-devel-1.0.13-20.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libpng-1.2.2-29.src.rpm
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libpng10-1.0.13-20.src.rpm

i386:
libpng-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-devel-1.2.2-29.i386.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-devel-1.0.13-20.i386.rpm

ia64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.ia64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.ia64.rpm
libpng-devel-1.2.2-29.ia64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.ia64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.ia64.rpm
libpng10-devel-1.0.13-20.ia64.rpm

x86_64:
libpng-1.2.2-29.i386.rpm
libpng-1.2.2-29.x86_64.rpm
libpng-debuginfo-1.2.2-29.i386.rpm
libpng-debuginfo-1.2.2-29.x86_64.rpm
libpng-devel-1.2.2-29.x86_64.rpm
libpng10-1.0.13-20.i386.rpm
libpng10-1.0.13-20.x86_64.rpm
libpng10-debuginfo-1.0.13-20.i386.rpm
libpng10-debuginfo-1.0.13-20.x86_64.rpm
libpng10-devel-1.0.13-20.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:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0040
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 2009 Red Hat, Inc.
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