HIGH
Integer overflow in Google Chrome before 20.0.1132.43 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted data in the Matroska container format.
http://code.google.com/p/chromium/issues/detail?id=132779
http://googlechromereleases.blogspot.com/2012/06/stable-channel-update_26.html
https://hermes.opensuse.org/messages/15075728
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15444