A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun Java Web Start. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the GetVMArgsOption() function used while parsing the java-vm-args attribute of the j2se tag in xml based JNLP files. When a user downloads a malicious JNLP file, the vulnerable attribute is read into a static buffer. If an overly long value is defined by the java-vm-args attribute, a stack based buffer overflow occurs, resulting in an exploitable condition.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68297/ZDI-08-043.txt
Source: https://packetstormsecurity.com/files/68297/Zero-Day-Initiative-Advisory-08-043.html