Use-after-free vulnerability in the PDF functionality in Google Chrome before 22.0.1229.79 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted document.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15766
https://exchange.xforce.ibmcloud.com/vulnerabilities/78841
https://code.google.com/p/chromium/issues/detail?id=147402
https://code.google.com/p/chromium/issues/detail?id=144072
https://code.google.com/p/chromium/issues/detail?id=143798
http://googlechromereleases.blogspot.com/2012/09/stable-channel-update_25.html