Google Chrome before 7.0.517.44 does not properly handle the data types of event objects, 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%3A11537
http://googlechromereleases.blogspot.com/2010/11/stable-channel-update.html