Apple QuickTime Player 7.0 on Mac OS X 10.4 allows remote attackers to obtain sensitive information via a .mov file with a Quartz Composer composition (.qtz) file that uses certain patches to read local information, then other patches to send the information to the attacker.
http://www.vupen.com/english/advisories/2005/0531
http://www.securityfocus.com/bid/13603
http://securitytracker.com/id?1013961
http://secunia.com/advisories/15307
http://remahl.se/david/vuln/018
http://lists.apple.com/archives/security-announce/2005/May/msg00006.html
http://lists.apple.com/archives/quartzcomposer-dev/2005/May/msg00263.html
http://lists.apple.com/archives/quartzcomposer-dev/2005/May/msg00250.html
http://docs.info.apple.com/article.html?artnum=301714
http://archives.neohapsis.com/archives/fulldisclosure/2005-05/0265.html