Apple® releases iPhone® OS (iOS) 4.3.5 update

Events off-late about Apple Inc. concerning a PDF bug with their iPhone OS phones are a cause of concern to all its customers. The bug was related to a security flaw that could creep in iOS phones once users opened PDF pages via the iOS version of the Safari browser, thus compromising their security.

However, just days after the alert issued by various security firms cautioning users to avoid downloading content through PDF files in their iOS-based phones, Apple released iOS 4.3.4 security update for all its supported devices as a patch to fix the issue.

And now, just a few days after Apple patched the PDF exploit and with claims of tools made available to crack the 4.3.4 update as well, the company has now released the iOS 4.3.5 software update for all iPhone, iPad and iPod Touch devices. A separate iOS 4.2.10 version is made available for CDMA devices. Just lke iOS 4.3.4, this update is also a pure security update with no additional features for iOS phones.

Problems for Apple started when a group of hackers from JailBreakMe.com identified a coding error related to rendering of PDF files in iOS phones. They manipulated the code to gain administrator privileges in the phones. By doing so, apps not allowed by Apple could be installed on iOS phones.

Although Apple rushed to fix the issue with the release of iOS 4.3.4, just a day after its release, updates for PwnageTool, a software used to gain unauthorized access of the phones, were made available to break the update.

This entire episode has now led Apple to release iOS 4.3.5 security update. It seems that Apple is in a catchup scenario with those who claim to break the security of its products.