Google Chrome before 16.0.912.63 does not properly handle PDF cross references, which allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14315
http://googlechromereleases.blogspot.com/2011/12/stable-channel-update.html