Google Chrome before 22.0.1229.92 does not monitor for crashes of Pepper plug-ins, which has unspecified impact and remote attack vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15517
https://code.google.com/p/chromium/issues/detail?id=151895
http://googlechromereleases.blogspot.com/2012/10/stable-channel-update.html