Printer Setup in Apple Mac OS X 10.6 before 10.6.4 does not properly interpret character encoding, which allows remote attackers to cause a denial of service (printing failure) by deploying a printing device that has a Unicode character in its printing-service name.
http://www.vupen.com/english/advisories/2010/1481
http://www.securityfocus.com/bid/40871
http://support.apple.com/kb/HT4188
http://securitytracker.com/id?1024103
http://secunia.com/advisories/40220
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html