Unspecified vulnerability in Apple Safari 7.0.2 on OS X allows remote attackers to execute arbitrary code with root privileges via unknown vectors, as demonstrated by Google during a Pwn4Fun competition at CanSecWest 2014.
https://support.apple.com/kb/HT6537
http://www.pwn2own.com/2014/03/pwn2own-results-for-wednesday-day-one/
http://twitter.com/thezdi/statuses/443796547872903168
http://archives.neohapsis.com/archives/bugtraq/2014-04/0136.html
http://archives.neohapsis.com/archives/bugtraq/2014-04/0135.html
http://archives.neohapsis.com/archives/bugtraq/2014-04/0009.html