Use-after-free vulnerability in Google Chrome before 20.0.1132.57 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to layout height tracking.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15569
http://support.apple.com/kb/HT5502
http://support.apple.com/kb/HT5485
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00009.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00005.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00001.html
http://googlechromereleases.blogspot.com/2012/07/stable-channel-update.html