libvpx, as used in Google Chrome before 8.0.552.215 and possibly other products, allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted WebM video. NOTE: this vulnerability exists because of a regression.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11919
http://www.vupen.com/english/advisories/2011/0662
http://www.ubuntu.com/usn/USN-1087-1
http://secunia.com/advisories/43728
http://secunia.com/advisories/42472
http://googlechromereleases.blogspot.com/2010/12/stable-beta-channel-updates.html