source: http://www.securityfocus.com/bid/9586/info

A vulnerability has been reported to reside in the 'shmat()' system call used in the BSD kernel. Exploiting this issue may allow a local attacker to inject instructions into the memory of a privileged process.

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/23655.tar.gz