The rpza_decode_stream function in libavcodec/rpza.c in FFmpeg before 2.1 does not properly maintain a pointer to pixel data, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Apple RPZA data. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-7009
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