SECURITY: libpng (CVE-2006-3334)

[Yaakov S (Cygwin Ports)]

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In pngrutil.c, the function png_decompress_chunk() allocates
insufficient space for an error message, potentially overwriting stack
data, leading to a buffer overflow.

Solution: update libpng10 to 1.0.20 and libpng12 to 1.2.12

More information:
http://security.gentoo.org/glsa/glsa-200607-06.xml
http://sourceforge.net/project/shownotes.php?release_id=428120&group_id=5624
http://sourceforge.net/project/shownotes.php?release_id=428123&group_id=5624
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3334


Yaakov

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