...from:
http://support.apple.com/kb/ht1222

Apple TV 2nd generation and later
21 Feb 2014
iPhone 4 and later, iPod touch (5th generation), iPad 2 and later
21 Feb 2014
iPhone 3GS, iPod touch (4th generation)
21 Feb 2014


Impact: An attacker with a privileged network position may capture or modify data in sessions protected by SSL/TLS

Description: Secure Transport failed to validate the authenticity of the connection. This issue was addressed by restoring missing validation steps.