The Security Framework in Apple Mac OS X 10.3.x up to 10.3.9 does not properly prioritize encryption ciphers when negotiating the strongest shared cipher, which causes Secure Transport to user a weaker cipher that makes it easier for remote attackers to decrypt traffic.
http://www.vupen.com/english/advisories/2006/4750
http://www.us-cert.gov/cas/techalerts/TA06-333A.html
http://www.securityfocus.com/bid/21335
http://www.kb.cert.org/vuls/id/734032
http://securitytracker.com/id?1017298
http://secunia.com/advisories/23155
http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html