LaunchServices in Apple Mac OS X 10.4.6 allows remote attackers to cause Safari to launch unsafe content via long file name extensions, which prevents Download Validation from determining which application will be used to open the file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26416
http://www.vupen.com/english/advisories/2006/1779
http://www.us-cert.gov/cas/techalerts/TA06-132A.html
http://www.securityfocus.com/bid/17951
http://securitytracker.com/id?1016081
http://secunia.com/advisories/20077
http://lists.apple.com/archives/security-announce/2006/May/msg00003.html