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Red Hat: 2012:0317-01 Important: Libpng Heap Overflow Exploit

red hat
Calendar Grey February 20, 2012
Dist Redhat Esm H88
Crucial libpng patch released for Red Hat clients, addressing critical memory overflow vulnerability across several iterations.
Updated libpng and libpng10 packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6

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

Summary

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 libpng. An attacker could create a specially-crafted PNG image 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-2011-3026)
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.

Topics%20covered

Topics Covered

security advisory security update buffer overflow red hat important libpng heap overflow

References

https://access.redhat.com/security/cve/CVE-2011-3026 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: libpng-1.2.7-9.el4.i386.rpm libpng-debuginfo-1.2.7-9.el4.i386.rpm libpng-devel-1.2.7-9.el4.i386.rpm libpng10-1.0.16-10.el4.i386.rpm libpng10-debuginfo-1.0.16-10.el4.i386.rpm libpng10-devel-1.0.16-10.el4.i386.rpm
ia64: libpng-1.2.7-9.el4.i386.rpm libpng-1.2.7-9.el4.ia64.rpm libpng-debuginfo-1.2.7-9.el4.i386.rpm libpng-debuginfo-1.2.7-9.el4.ia64.rpm libpng-devel-1.2.7-9.el4.ia64.rpm libpng10-1.0.16-10.el4.i386.rpm libpng10-1.0.16-10.el4.ia64.rpm libpng10-debuginfo-1.0.16-10.el4.i386.rpm libpng10-debuginfo-1.0.16-10.el4.ia64.rpm libpng10-devel-1.0.16-10.el4.ia64.rpm
ppc: libpng-1.2.7-9.el4.ppc.rpm libpng-1.2.7-9.el4.ppc64.rpm libpng-debuginfo-1.2.7-9.el4.ppc.rpm libpng-debuginfo-1.2.7-9.el4.ppc64.rpm libpng-devel-1.2.7-9.el4.ppc.rpm libpng10-1.0.16-10.el4.ppc.rpm libpng10-1.0.16-10.el4.ppc64.rpm libpng10-debuginfo-1.0.16-10.el4.ppc.rpm libpng10-debuginfo-1.0.16-10.el4.ppc64.rpm libpng10-devel-1.0.16-10.el4.ppc.rpm
s390: libpng-1.2.7-9.el4.s390.rpm libpng-debuginfo-1.2.7-9.el4.s390.rpm libpng-devel-1.2.7-9.el4.s390.rpm libpng10-1.0.16-10.el4.s390.rpm libpng10-debuginfo-1.0.16-10.el4.s390.rpm libpng10-devel-1.0.16-10.el4.s390.rpm
s390x: libpng-1.2.7-9.el4.s390.rpm libpng-1.2.7-9.el4.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0317-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0317.html
Issue date: 2012-02-20

Topic

Updated libpng and libpng10 packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 4, 5, and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security update buffer overflow red hat important libpng heap overflow

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 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 (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, 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 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 WS version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

790737 - CVE-2011-3026 libpng: Heap-buffer-overflow in png_decompress_chunk (MFSA 2012-11)

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