For more details on this update, please visit this website:http://support.apple.com/kb/HT3892
For information on the security content of this update, please visit this website:http://support.apple.com/kb/HT1222
Multiple vulnerabilities exist in Java 1.6.0_15, the most serious of which may allow an untrusted Java applet to obtain elevated privileges. Visiting a web page containing a maliciously crafted untrusted Java applet may lead to arbitrary code execution with the privileges of the current user. These issues are addressed by updating to Java version 1.6.0_17.