CVE-2006-0383
IPSec when used with VPN networks in Mac OS X 10.4 through 10.4.5 allows remote attackers to cause a denial of service (application crash) via unspecified vectors involving the "incorrect handling of error conditions".
Date published : 2006-03-02
http://lists.apple.com/archives/security-announce/2006/Mar/msg00000.html