The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.
secunia.com/advisories/36805
secunia.com/advisories/39482
www.mandriva.com/security/advisories?name=MDVSA-2011:059
www.mandriva.com/security/advisories?name=MDVSA-2011:060
www.mandriva.com/security/advisories?name=MDVSA-2011:061
www.mandriva.com/security/advisories?name=MDVSA-2011:088
www.mandriva.com/security/advisories?name=MDVSA-2011:112
www.securityfocus.com/bid/36465
www.ubuntu.com/usn/USN-931-1
www.vupen.com/english/advisories/2010/0935
www.vupen.com/english/advisories/2011/1241
roundup.ffmpeg.org/roundup/ffmpeg/issue1240
roundup.ffmpeg.org/roundup/ffmpeg/issue1245
scarybeastsecurity.blogspot.com/2009/09/patching-ffmpeg-into-shape.html