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[SECURITY] Fedora 7 Update: libpng10-1.0.37-1.fc7



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Fedora Update Notification
FEDORA-2008-3979
2008-05-28 22:53:08
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Name        : libpng10
Product     : Fedora 7
Version     : 1.0.37
Release     : 1.fc7
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.

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Update Information:

This update fixes the way that libpng10 handles unknown zero-length chunks,
which in previous versions could result in writing to attacker controlled
addresses, depending on how the libpng api is used.    To be affected, an
application would have to call png_set_keep_unknown_chunks(), which tells libpng
not to ignore unknown chunks, but to do something with them.  The PNG spec
allows for "unknown" chunks, which are ignored by default, but an  application
could in theory embed some sort of extra data in a png image, then later get it
back out via this mechanism.    No packages in Fedora are believed to be
affected by this issue, but it's possible that third-party applications could
be.
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ChangeLog:

* Fri May  9 2008 Paul Howarth <paul city-fan org> 1.0.37-1
- update to 1.0.37
- autotools patch no longer needed
- explicitly specify the library filename in %files as a consistency check
* Wed Apr 30 2008 Paul Howarth <paul city-fan org> 1.0.34-1
- update to 1.0.34
- update autotools patch
* Wed Apr 30 2008 Paul Howarth <paul city-fan org> 1.0.33-1
- update to 1.0.33 (CVE-2008-1382, #441839)
- add patch to fix broken autotools build scripts
* Thu Apr  3 2008 Paul Howarth <paul city-fan org> 1.0.32-1
- update to 1.0.32
* Tue Feb 19 2008 Paul Howarth <paul city-fan org> 1.0.31-1
- update to 1.0.31
* Wed Feb 13 2008 Paul Howarth <paul city-fan org> 1.0.30-2
- rebuild with gcc 4.3.0 for Fedora 9
* Tue Oct 16 2007 Paul Howarth <paul city-fan org> 1.0.30-1
- update to 1.0.30
* Fri Oct  5 2007 Paul Howarth <paul city-fan org> 1.0.29-1
- update to 1.0.29 (fixes DoS issue, #327791, CVE-2007-5269)
* Tue Sep 11 2007 Paul Howarth <paul city-fan org> 1.0.28-1
- update to 1.0.28
* Mon Aug 20 2007 Paul Howarth <paul city-fan org> 1.0.27-1
- update to 1.0.27
- add new file ANNOUNCE, which lists changes since last release
- use shortname "zlib" for the license tag (package is zlib/libpng licensed)
- drop pkgconf patch, which should no longer be needed
* Sun May 20 2007 Paul Howarth <paul city-fan org> 1.0.26-1
- update to 1.0.26 to address DoS issue (#240398, CVE-2007-2445)
- update soname patch
- libpng.txt now has a versioned filename
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References:

  [ 1 ] Bug #441839 - CVE-2008-1382 libpng unknown chunk handling flaw
        https://bugzilla.redhat.com/show_bug.cgi?id=441839
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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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