iDEFENSE Security Advisory 05.04.05 – Local exploitation of a buffer overflow vulnerability in Apple Computer, Inc.’s Mac OS X allows attackers to execute arbitrary code. vpnd is the system daemon which manages IPSEC or PPTP connections. The vulnerability specifically exists due to insufficient bounds checking on the value given to the Server_id parameter.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39085/05.04.05.txt
Source: https://packetstormsecurity.com/files/39085/iDEFENSE-Security-Advisory-2005-05-04.t.html