Use-after-free vulnerability in Google Chrome before 24.0.1312.52 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving PDF fields.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16330
https://code.google.com/p/chromium/issues/detail?id=162778
http://googlechromereleases.blogspot.com/2013/01/stable-channel-update.html