Google Chrome before 14.0.835.202 does not properly consider object lifetimes and thread safety during the handling of audio nodes, 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%3A14496
http://googlechromereleases.blogspot.com/2011/10/stable-channel-update.html