The WebSockets implementation in Google Chrome before 6.0.472.53 does not properly handle integer values, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12119
http://googlechromereleases.blogspot.com/2010/09/stable-and-beta-channel-updates.html