Use-after-free vulnerability in the Cascading Style Sheets (CSS) implementation in Google Chrome before 19.0.1084.52 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the :first-letter pseudo-element.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15535
http://www.securitytracker.com/id?1027098
http://www.securityfocus.com/bid/53679
http://support.apple.com/kb/HT5503
http://support.apple.com/kb/HT5502
http://support.apple.com/kb/HT5485
http://security.gentoo.org/glsa/glsa-201205-04.xml
http://secunia.com/advisories/49306
http://secunia.com/advisories/49277
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/2012/05/stable-channel-update_23.html