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iPhone Jailbreakers And Unlockers Should Avoid Upgrading To iOS 4.3

March 7th, 2011 03:54 admin Leave a comment Go to comments

Jailbreak iOS 4.3

We reported yesterday that iOS 4.3 GM has already been jailbroken using PwnageTool 4.2, unofficial custom bundles, Universal Ramdisk Fixes and tetheredboot utility.

BigBoss has just warned users who want to jailbreak and unlock their iPhone to avoid upgrading to iOS 4.3 until the official jailbreaking tools are released.

BigBoss warns:

As always, I give my standard warning not to update and wait for the jailbreak release. This time, I am giving some extra caution, however.

With 4.3 comes apple’s implementation of address space layout randomization (ASLR). In short, this will mess up the way mobile substrate works. You will need a new mobile substrate in order to use your favorite tweaks such as winterboard, sbsettings, bitesms, folder enhancer, etc. So you should definitely avoid 4.3 until an “official” jailbreak is released for it.

Back in January, Joshua Hill of the Chronic Dev Team had pointed out that ASLR added in iOS 4.3 will make it more difficult to exploit userland vulnerabilities that are used to jailbreak iPhones.

Looks like Apple added ASLR into iOS 4.3. This should make things more fun!!!

ASLR is Address Space Layout Randomization. It’s designed to make userland vulnerabilities more difficult to exploit

So avoid upgrading to iOS 4.3 when it is released on March 11th or iOS 4.3 GM. This warning also applies to iPod Touch and iPad users.

iPhone Dev Team, Chronic Dev Team or iH8sn0w haven’t provided any ETA on when the updated tools like PwnageTool, Greenpois0n, Sn0wbreeze etc for iOS 4.3 will be released.

As always, we’ll let you know if there are any further updates so stay tuned here at iPhone Hacks or follow us on Twitter or subscribe to our RSS feed.

[via BigBoss]

Source: iPhone Jailbreakers And Unlockers Should Avoid Upgrading To iOS 4.3

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