Wi-Fi in Apple iOS before 4.3 and Apple TV before 4.2 does not properly perform bounds checking for Wi-Fi frames, which allows remote attackers to cause a denial of service (device reset) via unspecified traffic on the local wireless network.
lists.apple.com/archives/security-announce/2011//Mar/msg00003.html
lists.apple.com/archives/security-announce/2011//Mar/msg00005.html
support.apple.com/kb/HT4564
support.apple.com/kb/HT4565
www.securityfocus.com/bid/46813
www.securitytracker.com/id?1025182
exchange.xforce.ibmcloud.com/vulnerabilities/65998