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--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2009-1976
2009-02-24 17:19:51
--------------------------------------------------------------------------------

Name        : libpng10
Product     : Fedora 10
Version     : 1.0.43
Release     : 1.fc10
URL         : http://www.libpng.org/pub/png/libpng.html
Summary     : Old version of libpng, needed to run old binaries
Description :
The libpng10 package contains an old version of libpng, a library of functions
for creating and manipulating PNG (Portable Network Graphics) image format
files.

This package is needed if you want to run binaries that were linked dynamically
with libpng 1.0.x.

--------------------------------------------------------------------------------
Update Information:

This release fixes a vulnerability in which some arrays of pointers are not
initialized prior to using malloc to define the pointers. If the application
runs out of memory while executing the allocation loop (which can be forced by
malevolent input), libpng10 will jump to a cleanup process that attempts to free
all of the pointers, including the undefined ones.    This issue has been
assigned CVE-2009-0040
--------------------------------------------------------------------------------
ChangeLog:

* Thu Feb 19 2009 Paul Howarth <paul@city-fan.org> 1.0.43-1
- update to 1.0.43 (clear pointer arrays created using png_malloc())
* Fri Dec 19 2008 Paul Howarth <paul@city-fan.org> 1.0.42-1
- update to 1.0.42 (various minor bugfixes and code cleanups)
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #486355 - CVE-2009-0040 libpng arbitrary free() flaw
        https://bugzilla.redhat.com/show_bug.cgi?id=486355
--------------------------------------------------------------------------------

This update can be installed with the "yum" update program.  Use 
su -c 'yum update libpng10' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
http://fedoraproject.org/keys
--------------------------------------------------------------------------------

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