Security experts have raised concerns that the vulnerability in iOS could be exploited in a similar way by malicious websites to install malware.
Associated Press reports that Apple has confirmed that it will be patching the vulnerability in the upcoming iOS software update:
Apple Inc. spokeswoman Bethan Lloyd said Thursday the company is “aware of this reported issue and developing a fix that will be available to customers in an upcoming software update.”
She declined to specify when the update would be available.
This doesn’t come as a surprise. When some of the JailbreakMe 3.0 files were leaked on the internet earlier in the week, Comex expected Apple to release an iOS software update (iOS 4.3.4) to fix the vulnerability used in JailbreakMe 3.0 and had advised users to take a backup of SHSH blobs.
You can use TinyUmbrella for iOS 4.3.3 or iOS 4.2.8 or iFaith that was released by iH8sn0w few days back 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.