Apple released iOS 4.3.4 (build 8K2) fixing a PDF exploit which makes possible wireless jailbreaking by visiting the JailbreakMe.com web-tool  in mobile Safari. The exploit could also be used to inject and execute any code on iOS devices. The iOS 4.3.4 download is now available through iTunes for the iPhone 4, 3GS, iPad 1 and 2 and third- and fourth-generation iPod touch. Verizon iPhone users will get the same fix via the iOS 4.2.9 update (build 8E501). Contents of the Verizon iPhone firmware update is outlined in this support document (here for iOS 4.3.4 for all other devices).

Stand-alone downloads below:

iOS Firmware

device current version date found
AppleTV(2G) (AppleTV2,1) 4.2.2 (8F305) 05/11/2011 16:06:01
iPad (iPad1,1) 4.3.4 (8K2) 07/15/2011 13:26:01
iPad2,1 (iPad2,1) 4.3.4 (8K2) 07/15/2011 13:26:01
iPad2,2 (iPad2,2) 4.3.4 (8K2) 07/15/2011 13:26:01
iPad2,3 (iPad2,3) 4.3.4 (8K2) 07/15/2011 13:26:01
iPhone (iPhone1,1) 3.1.3 (7E18) 04/08/2010 21:05:48
iPhone3G (iPhone1,2) 4.2 (8C148) 11/22/2010 13:08:57
iPhone3GS (iPhone2,1) 4.3.4 (8K2) 07/15/2011 13:26:01
iPhone4 (iPhone3,1) 4.3.4 (8K2) 07/15/2011 13:26:01
iPhone4(vz) (iPhone3,3) 4.2.9 (8E501) 07/15/2011 13:26:01
iPodTouch(2G) (iPod2,1) 4.2 (8C148) 11/22/2010 13:08:57
iPodTouch(3G) (iPod3,1) 4.3.4 (8K2) 07/15/2011 13:26:01
iPodTouch(4G) (iPod4,1) 4.3.4 (8K2) 07/15/2011 13:26:01

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