Zero Day Initiative Advisory 09-043 – This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Java HotSpot. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the undocumented apple.laf.CColourUIResource(long, int, int ,int, int) constructor. When passing a long integer value as the first argument, the value is interpreted as pointer to an Objective-C object. By constructing a special memory structure and passing the pointer to the first argument an attacker may execute arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78473/ZDI-09-043.txt
Source: https://packetstormsecurity.com/files/78473/Zero-Day-Initiative-Advisory-09-043.html