Package: libpng
Severity: grave
Tags: security

Three security issues have been reported in libpng. Please see
the following links to CVE IDs and Red Hat bugzilla:

1. buffer overwrite in png_rgb_to_gray
CVE: CVE-2011-2690
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=720607

2. Crash in png_default_error due to use of NULL Pointer
CVE: CVE-2011-2691
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=720608

3. Memory corruption when handling empty sCAL chunks
CVE: CVE-2011-2692
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=720612

Cheers,
        Moritz



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