Scientific Linux 4.0 Moderate: libpng Memory Issue Advisory

Date: Thu, 28 Jul 2011 15:24:22 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Moderate: libpng on SL4.x i386/x86_64
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Synopsis: Moderate: libpng security update
Issue Date: 2011-07-28
CVE Numbers: CVE-2011-2692

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.

SL4:
 i386
 libpng-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-devel-1.0.16-9.el4.i386.rpm
 x86_64
 libpng-1.2.7-8.el4.x86_64.rpm
 libpng-1.2.7-8.el4.i386.rpm
 libpng-devel-1.2.7-8.el4.x86_64.rpm
 libpng10-1.0.16-9.el4.x86_64.rpm
 libpng10-1.0.16-9.el4.i386.rpm
 libpng10-devel-1.0.16-9.el4.x86_64.rpm

- Scientific Linux Development Team
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