Buffer overflow in Apple iTunes before 9.0.1 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted .pls file.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6290
http://www.securityfocus.com/bid/36478
http://support.apple.com/kb/HT3884
http://lists.apple.com/archives/security-announce/2009/Sep/msg00006.html