Mandriva Linux Security Advisory : libpng (MDVSA-2010:064)
High Nessus Plugin ID 45136
SynopsisThe remote Mandriva Linux host is missing one or more security updates.
DescriptionA vulnerability has been found and corrected in libpng :
The png_decompress_chunk function in pngrutil.c in libpng 1.0.x before 1.0.53, 1.2.x before 1.2.43, and 1.4.x before 1.4.1 does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a decompression bomb attack (CVE-2010-0205).
The updated packages have been patched to correct this issue.
SolutionUpdate the affected packages.