Synopsis:    Moderate: libpng security update
Issue Date:  2012-04-25
CVE Numbers: CVE-2011-3048


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 Scientific Linux 5, they contain a backported
patch. For Scientific Linux 6, they upgrade libpng to version
1.2.49. All running applications using libpng must be restarted for the
update to take effect.

SL5:
  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
  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
SL6:
  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
     libpng-static-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
     libpng-static-1.2.49-1.el6_2.x86_64.rpm

- Scientific Linux Development Team