Fedora: 2,1: libpng Multiple vulnerabilities
Summary
The libpng package contains a library of functions for creating and
manipulating PNG (Portable Network Graphics) image format files. PNG
is a bit-mapped graphics format similar to the GIF format. PNG was
created to replace the GIF format, since GIF uses a patented data
compression algorithm.
Libpng should be installed if you need to manipulate PNG format image
files.
The libpng package contains a library of functions for creating and
manipulating PNG (Portable Network Graphics) image format files. PNG
is a bit-mapped graphics format similar to the GIF format. PNG was
created to replace the GIF format, since GIF uses a patented data
compression algorithm.
Libpng should be installed if you need to manipulate PNG format image
files.
Update Information:
The libpng package contains a library of functions for creating and
manipulating PNG (Portable Network Graphics) image format files.
During a source code audit, Chris Evans discovered several buffer
overflows in libpng. An attacker could create a carefully crafted PNG
file in such a way that it would cause an application linked with libpng
to execute arbitrary code when the file was opened by a victim. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2004-0597 to these issues.
In addition, this audit discovered a potential NULL pointer dereference
in libpng (CAN-2004-0598) and several integer overflow issues
(CAN-2004-0599). An attacker could create a carefully crafted PNG file
in such a way that it would cause an application linked with libpng to
crash when the file was opened by the victim.
Red Hat would like to thank Chris Evans for discovering these issues.
* Fri Jul 23 2004 Matthias Clasen <mclasen@redhat.com> 2:1.2.5-8
- Build f...
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References
CORE 2: Fedora Update Notification FEDORA-2004-239 2004-08-04 Product : Fedora Core 2 Name : libpng Version : 1.2.5 Release : 8 Summary : A library of functions for manipulating PNG image format files. Description : The libpng package contains a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files. PNG is a bit-mapped graphics format similar to the GIF format. PNG was created to replace the GIF format, since GIF uses a patented data compression algorithm. Libpng should be installed if you need to manipulate PNG format image files.
Update Instructions
