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

Synopsis:          Moderate: libpng security update
Advisory ID:       RHSA-2012:0523-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-0523.html
Issue date:        2012-04-25
CVE Names:         CVE-2011-3048 
=====================================================================

1. Summary:

Updated libpng packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 6.

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:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

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

A heap-based buffer overflow flaw was found in the way libpng processed
tEXt chunks in PNG image files. An attacker could create a
specially-crafted PNG image file that, when opened, could cause an
application using libpng to crash or, possibly, execute arbitrary code with
the privileges of the user running the application. (CVE-2011-3048)

Users of libpng should upgrade to these updated packages, which correct
this issue. For Red Hat Enterprise Linux 5, they contain a backported
patch. For Red Hat Enterprise Linux 6, they upgrade libpng to version
1.2.49. All running applications using libpng 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/knowledge/articles/11258

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

808139 - CVE-2011-3048 libpng: memory corruption flaw

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libpng-1.2.10-17.el5_8.src.rpm

i386:
libpng-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm

x86_64:
libpng-1.2.10-17.el5_8.i386.rpm
libpng-1.2.10-17.el5_8.x86_64.rpm
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libpng-1.2.10-17.el5_8.src.rpm

i386:
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-devel-1.2.10-17.el5_8.i386.rpm

x86_64:
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.x86_64.rpm
libpng-devel-1.2.10-17.el5_8.i386.rpm
libpng-devel-1.2.10-17.el5_8.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libpng-1.2.10-17.el5_8.src.rpm

i386:
libpng-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-devel-1.2.10-17.el5_8.i386.rpm

ia64:
libpng-1.2.10-17.el5_8.i386.rpm
libpng-1.2.10-17.el5_8.ia64.rpm
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.ia64.rpm
libpng-devel-1.2.10-17.el5_8.ia64.rpm

ppc:
libpng-1.2.10-17.el5_8.ppc.rpm
libpng-1.2.10-17.el5_8.ppc64.rpm
libpng-debuginfo-1.2.10-17.el5_8.ppc.rpm
libpng-debuginfo-1.2.10-17.el5_8.ppc64.rpm
libpng-devel-1.2.10-17.el5_8.ppc.rpm
libpng-devel-1.2.10-17.el5_8.ppc64.rpm

s390x:
libpng-1.2.10-17.el5_8.s390.rpm
libpng-1.2.10-17.el5_8.s390x.rpm
libpng-debuginfo-1.2.10-17.el5_8.s390.rpm
libpng-debuginfo-1.2.10-17.el5_8.s390x.rpm
libpng-devel-1.2.10-17.el5_8.s390.rpm
libpng-devel-1.2.10-17.el5_8.s390x.rpm

x86_64:
libpng-1.2.10-17.el5_8.i386.rpm
libpng-1.2.10-17.el5_8.x86_64.rpm
libpng-debuginfo-1.2.10-17.el5_8.i386.rpm
libpng-debuginfo-1.2.10-17.el5_8.x86_64.rpm
libpng-devel-1.2.10-17.el5_8.i386.rpm
libpng-devel-1.2.10-17.el5_8.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm

x86_64:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-1.2.49-1.el6_2.x86_64.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm
libpng-static-1.2.49-1.el6_2.i686.rpm

x86_64:
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.x86_64.rpm
libpng-static-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

x86_64:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-1.2.49-1.el6_2.x86_64.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

x86_64:
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.x86_64.rpm
libpng-static-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm

ppc64:
libpng-1.2.49-1.el6_2.ppc.rpm
libpng-1.2.49-1.el6_2.ppc64.rpm
libpng-debuginfo-1.2.49-1.el6_2.ppc.rpm
libpng-debuginfo-1.2.49-1.el6_2.ppc64.rpm
libpng-devel-1.2.49-1.el6_2.ppc.rpm
libpng-devel-1.2.49-1.el6_2.ppc64.rpm

s390x:
libpng-1.2.49-1.el6_2.s390.rpm
libpng-1.2.49-1.el6_2.s390x.rpm
libpng-debuginfo-1.2.49-1.el6_2.s390.rpm
libpng-debuginfo-1.2.49-1.el6_2.s390x.rpm
libpng-devel-1.2.49-1.el6_2.s390.rpm
libpng-devel-1.2.49-1.el6_2.s390x.rpm

x86_64:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-1.2.49-1.el6_2.x86_64.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-static-1.2.49-1.el6_2.i686.rpm

ppc64:
libpng-debuginfo-1.2.49-1.el6_2.ppc64.rpm
libpng-static-1.2.49-1.el6_2.ppc64.rpm

s390x:
libpng-debuginfo-1.2.49-1.el6_2.s390x.rpm
libpng-static-1.2.49-1.el6_2.s390x.rpm

x86_64:
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-static-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm

x86_64:
libpng-1.2.49-1.el6_2.i686.rpm
libpng-1.2.49-1.el6_2.x86_64.rpm
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-devel-1.2.49-1.el6_2.i686.rpm
libpng-devel-1.2.49-1.el6_2.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libpng-1.2.49-1.el6_2.src.rpm

i386:
libpng-debuginfo-1.2.49-1.el6_2.i686.rpm
libpng-static-1.2.49-1.el6_2.i686.rpm

x86_64:
libpng-debuginfo-1.2.49-1.el6_2.x86_64.rpm
libpng-static-1.2.49-1.el6_2.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-2011-3048.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 2012 Red Hat, Inc.
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