Unknown vulnerability in Windows File Sharing for Mac OS X 10.1.5 through 10.3.2 does not "shutdown properly," which has unknown impact and attack vectors.
http://www.securityfocus.com/bid/9504
http://www.auscert.org.au/render.html?it=3791&cid=1
http://secunia.com/advisories/10723/
http://lists.apple.com/archives/security-announce/2004/Jan/msg00000.html