Apple Releases iOS 4.3.4 For iPhone, iPad, iPod Touch & iOS 4.2.9 For Verizon iPhone To Fix JailbreakMe 3.0 Vulnerability [Updated]

iOS 4.3.4

Apple has just released iOS 4.3.4 for iPhone, iPad and iPod Touch and iOS 4.2.9 for Verizon iPhone to fix the vulnerability that was used by Comex in JailbreakMe 3.0.

Comex had released JailbreakMe 3.0 – one of the easiest solutions to jailbreak iPhone, iPad and iPod Touch early last week, which uses a userland exploit to jailbreak and install Cydia on an iOS device using mobile Safari.

Security experts had raised concerns that the vulnerability in iOS could be exploited in a similar way by malicious websites to install malware. Apple had acknowledged the issue earlier in the week and announced that it will release a patch to fix the vulnerability shortly.

According to the release notes, iOS 4.3.4 and iOS 4.2.9 includes the following changes:

Fixes security vulnerability associated with viewing malicious PDF files.

iOS 4.3.4 supports the following iOS devices:

  • iPhone 4, iPhone 3GS
  • iPod Touch 4G, iPod Touch 3G
  • iPad 2, iPad 1

iOS 4.2.9 supports:

  • Verizon iPhone 4

Comex expected Apple to release an iOS software update (iOS 4.3.4) to fix the vulnerability used in JailbreakMe 3.0 and has advised users to take a backup of SHSH blobs. You can use TinyUmbrella for iOS 4.3.3 or iOS 4.2.8 to take a backup of your SHSH blobs so that you can downgrade to the older version of iOS if required. Jailbreakers and iPhone unlockers should also avoid upgrading to iOS 4.3.4 if it is released, until the jailbreak community does not release the latest tools for iOS 4.3.4.

If you don’t want to upgrade to iOS 4.3.4, but don’t want to be exposed to the security vulnerability then you can install PDF Patcher 2 on Cydia to fix the vulnerability associated with viewing malicious PDF files. You can checkout the instructions to install it in this post.

If you don’t care about jailbreaking or unlocking your iPhone then you can update your iPhone with iOS 4.3.4 or iOS 4.2.9 via iTunes.

Update 1:

According to Knowledge base articles (for iOS 4.3.4 and iOS 4.2.9), Apple has fixed three vulnerabilities in the latest iOS software updates.

Update 2:

Here are the direct download links for iOS 4.3.4 and iOS 4.2.9:

Update 3:

MuscleNerd of the iPhone Dev team has also issued the following warning to jailbreakers and iPhone unlockers:

iOS 4.3.4 is out…please don’t update, or you’ll lose your jailbreak! And back up your 4.3.3 blobs soon!

As always, let us know how it goes and if you notice anything interesting in the comments.

Like this post? Share it!

  • poop

    i think this goes without saying but is it possible to upgrade an ipad2 to 4.3.3 anymore?

  • Ian

    I have only one thing to say to Apple : Fuck you !
    I bought my iPhone 4 at full price of 699$ when I was in US in Feb! Back to Europe, both Apple & ATT refused to unlock/exchange my phone even after the selling of factory unlocked iphone 4.
    To Apple: Be sure that I won’t upgrade my jailbroken expensive “iTouch” and will do everything to provide jailbreak info and non-appstore apps, to everyone around me !!

    • Wite Boy

      thats kinda your fault for not knowing what you were doing…

      • Teeb

        stupid guy @ian.
        ive jad my iphone4 since the day it came out, im on ios 4.3.3 and baseband 01.59.00, technically, it is your fault like Wite Boy sed, so stop blaming other people for your own mistakes! 😀

        • Teeb


          • Ian

            I guess you both are from US ! I can’t imagine such answers from European !!

            Sorry guys, but I went to an Apple store, bought the phone without subscription to any carrier ! the sales man never told that the phone was locked anyway to ATT ! Of course they don’t say that, only selling matters !

            Imagine you buy a car, the seller don’t warn you about any restrictions, and when you are at a BP fuel station, they say to you “sorry, but this car is locked to Shell so you can’t tank here” !

            What’s the matter with you guys ? You think you are smart just because you succeeded to have a non-legal unlocked phone ? and of course, you always know what you do ! Never did a mistake !
            And Teek, don’t act like a stupid proud fucking guy ! If you had your phone with BB release 3.10 or 4.10, you would also be fucked !!

    • Randy

      In response to your response, Ian,
      You deserve what you got.

      This American at least has the brains to do a little research before buying an iPhone.
      The Att lock has been around for four years!

      Bashing America and then confirming everyone’s thoughts about your intelligence is a real smooth move, dude.

    • Just an Americian

      I believe I read on here somewhere that if you now take it to an Apple store has to be an Apple store that they will unlock it for you if you can prove you paid full price for it. At least that’s what I read. Hope that helps. But again as always with apple products especially if intended use is on non authorizes subsidies the name of the game is Reasearch, Reasearch

    • Minor

      You should have been more carefull
      Damn eurpians are idiots

      Apple is awesome

  • Pendle Europa 2000 – Black Jaguar –

    Well at least we know the IPAD 2 can be jailbroken now, so it wont be long before snowbreeze or one of the others support it as this update only fixes the transfer of the software through the pdf route into the ipad 2 lol

  • pitoperes

    hey i downloaded the 4.3.4 ipsw and i used redsn0w using the 4.3.3 and it can be jailbreak it….i dont how it happen but now the ios 4.3.4 its jailbreak it….

  • fas

    I think the Cydia update would be enough to punch the hole.

  • Johhnnnyy

    Is there anyway to still jailbreak an iPhone 4 with the new update from apple?

  • Logan

    When will there be an update for jailbreakme so you can jailbreak with 4.3.4