Unknown vulnerability in Mac OS X 10.3.4, related to "handling of process IDs during package installation," a different vulnerability than CVE-2004-0516.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16290
http://www.securityfocus.com/bid/10432
http://securitytracker.com/id?1010331
http://lists.seifried.org/pipermail/security/2004-May/003743.html