WebKit in Google Chrome before 25.0.1364.160 allows remote attackers to execute arbitrary code via vectors that leverage "type confusion."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16274
https://code.google.com/p/chromium/issues/detail?id=180763
http://twitter.com/thezdi/statuses/309460019131346944
http://support.apple.com/kb/HT5704
http://support.apple.com/kb/HT5701
http://lists.apple.com/archives/security-announce/2013/Mar/msg00004.html
http://lists.apple.com/archives/security-announce/2013/Apr/msg00000.html
http://labs.mwrinfosecurity.com/blog/2013/03/06/pwn2own-at-cansecwest-2013/
http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
http://googlechromereleases.blogspot.com/2013/03/stable-channel-update_7.html