Apple released iOS 4.3.4 and iOS 4.2.9 on Friday for the iPhone, iPad and iPod touch. The updates patch a PDF rendering security flaw that’s currently used to install the JailbreakMe jailbreak hack through Mobile Safari.
iOS 4.3.4, now with less hack-ness
iOS 4.3.4 is available for the iPod touch, iPad, iPad 2 and GSM iPhone 3GS and iPhone 4. GSM is the cell network technology used by many mobile phone providers around the world in including AT&T in the U.S. CDMA is used by Verizon and isn’t compatible with GSM networks, requiring Apple to release a special iPhone 4 model just for their network.
The security flaw could potentially be used to install software without user authorization, although the only in-the-wild use of the threat is the JailbreakMe hack. JailbreakMe lets users jailbreak their iOS devices without requiring a connection to a computer. Jailbreaking is a process that hacks the device so third-party apps that aren’t available through Apple’s App Store can be installed and run.