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

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

Synopsis:          Moderate: libpng security update
Advisory ID:       RHSA-2011:1103-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1103.html
Issue date:        2011-07-28
CVE Names:         CVE-2011-2692 
=====================================================================

1. Summary:

Updated libpng and libpng10 packages that fix one security issue are now
available for Red Hat Enterprise Linux 4.

The Red Hat Security Response Team has rated this update as having moderate
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:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - 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.

An uninitialized memory read issue was found in the way libpng processed
certain PNG images that use the Physical Scale (sCAL) extension. An
attacker could create a specially-crafted PNG image that, when opened,
could cause an application using libpng to crash. (CVE-2011-2692)

Users of libpng and libpng10 should upgrade to these updated packages,
which contain a backported patch to correct this issue. All running
applications using libpng or libpng10 must be restarted for the 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
https://access.redhat.com/kb/docs/DOC-11259

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

720612 - CVE-2011-2692 libpng: Invalid read when handling empty sCAL chunks

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libpng-1.2.7-8.el4.src.rpm
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libpng10-1.0.16-9.el4.src.rpm

i386:
libpng-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-devel-1.2.7-8.el4.i386.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-devel-1.0.16-9.el4.i386.rpm

ia64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.ia64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.ia64.rpm
libpng-devel-1.2.7-8.el4.ia64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.ia64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.ia64.rpm
libpng10-devel-1.0.16-9.el4.ia64.rpm

ppc:
libpng-1.2.7-8.el4.ppc.rpm
libpng-1.2.7-8.el4.ppc64.rpm
libpng-debuginfo-1.2.7-8.el4.ppc.rpm
libpng-debuginfo-1.2.7-8.el4.ppc64.rpm
libpng-devel-1.2.7-8.el4.ppc.rpm
libpng10-1.0.16-9.el4.ppc.rpm
libpng10-1.0.16-9.el4.ppc64.rpm
libpng10-debuginfo-1.0.16-9.el4.ppc.rpm
libpng10-debuginfo-1.0.16-9.el4.ppc64.rpm
libpng10-devel-1.0.16-9.el4.ppc.rpm

s390:
libpng-1.2.7-8.el4.s390.rpm
libpng-debuginfo-1.2.7-8.el4.s390.rpm
libpng-devel-1.2.7-8.el4.s390.rpm
libpng10-1.0.16-9.el4.s390.rpm
libpng10-debuginfo-1.0.16-9.el4.s390.rpm
libpng10-devel-1.0.16-9.el4.s390.rpm

s390x:
libpng-1.2.7-8.el4.s390.rpm
libpng-1.2.7-8.el4.s390x.rpm
libpng-debuginfo-1.2.7-8.el4.s390.rpm
libpng-debuginfo-1.2.7-8.el4.s390x.rpm
libpng-devel-1.2.7-8.el4.s390x.rpm
libpng10-1.0.16-9.el4.s390.rpm
libpng10-1.0.16-9.el4.s390x.rpm
libpng10-debuginfo-1.0.16-9.el4.s390.rpm
libpng10-debuginfo-1.0.16-9.el4.s390x.rpm
libpng10-devel-1.0.16-9.el4.s390x.rpm

x86_64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.x86_64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.x86_64.rpm
libpng-devel-1.2.7-8.el4.x86_64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.x86_64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.x86_64.rpm
libpng10-devel-1.0.16-9.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libpng-1.2.7-8.el4.src.rpm
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libpng10-1.0.16-9.el4.src.rpm

i386:
libpng-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-devel-1.2.7-8.el4.i386.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-devel-1.0.16-9.el4.i386.rpm

x86_64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.x86_64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.x86_64.rpm
libpng-devel-1.2.7-8.el4.x86_64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.x86_64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.x86_64.rpm
libpng10-devel-1.0.16-9.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libpng-1.2.7-8.el4.src.rpm
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libpng10-1.0.16-9.el4.src.rpm

i386:
libpng-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-devel-1.2.7-8.el4.i386.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-devel-1.0.16-9.el4.i386.rpm

ia64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.ia64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.ia64.rpm
libpng-devel-1.2.7-8.el4.ia64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.ia64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.ia64.rpm
libpng10-devel-1.0.16-9.el4.ia64.rpm

x86_64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.x86_64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.x86_64.rpm
libpng-devel-1.2.7-8.el4.x86_64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.x86_64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.x86_64.rpm
libpng10-devel-1.0.16-9.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libpng-1.2.7-8.el4.src.rpm
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libpng10-1.0.16-9.el4.src.rpm

i386:
libpng-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-devel-1.2.7-8.el4.i386.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-devel-1.0.16-9.el4.i386.rpm

ia64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.ia64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.ia64.rpm
libpng-devel-1.2.7-8.el4.ia64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.ia64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.ia64.rpm
libpng10-devel-1.0.16-9.el4.ia64.rpm

x86_64:
libpng-1.2.7-8.el4.i386.rpm
libpng-1.2.7-8.el4.x86_64.rpm
libpng-debuginfo-1.2.7-8.el4.i386.rpm
libpng-debuginfo-1.2.7-8.el4.x86_64.rpm
libpng-devel-1.2.7-8.el4.x86_64.rpm
libpng10-1.0.16-9.el4.i386.rpm
libpng10-1.0.16-9.el4.x86_64.rpm
libpng10-debuginfo-1.0.16-9.el4.i386.rpm
libpng10-debuginfo-1.0.16-9.el4.x86_64.rpm
libpng10-devel-1.0.16-9.el4.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-2692.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2011 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFOMamHXlSAg2UNWIIRAhn5AKDDT/GzTFyFxzVNykH6OtP5/hnYcwCeNFBW
QtBcCi5n9hbtLOvLu93W/nc=
=7tmH
-----END PGP SIGNATURE-----

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