Use-after-free vulnerability in Google Chrome before 20.0.1132.43 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the layout of documents that use the Cascading Style Sheets (CSS) counters feature.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14771
https://hermes.opensuse.org/messages/15075728
http://support.apple.com/kb/HT5503
http://support.apple.com/kb/HT5502
http://support.apple.com/kb/HT5485
http://lists.apple.com/archives/security-announce/2012/Sep/msg00005.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00003.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00001.html
http://googlechromereleases.blogspot.com/2012/06/stable-channel-update_26.html