Google Chrome before 8.0.552.215 does not properly restrict the generation of file dialogs, which allows remote attackers to cause a denial of service (reduced usability and possible application crash) via a crafted web site.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12062
http://secunia.com/advisories/42472
http://googlechromereleases.blogspot.com/2010/12/stable-beta-channel-updates.html