Adam Donenfeld from Zimperium team that teased quite a few bugs of iOS 11.2.2 has again come up with something for jailbreak community. He has recently confirmed that he has discovered a new kernel-level bug of iOS that will affect the iOS versions below iOS 11.2.5.
The announcement came through several tweets from Donenfeld which confirmed that “kernel heap overflow” bug revealed by him is now acknowledge by Apple and it will be fixed in iOS 11.2.5 release. The reference of this bug fix is CVE-2018-4109 in the security release notes of Apple.
It has also been stipulated by the security researcher that an exploit hasn’t been written by him specifically for the bug but it can be accessed from sandbox and existing frameworks may choose to use the good practice in a < iOS 11.2.5 jailbreak same as that from Jonathan Levin.
Now that the bug has been revealed, it is quite possible now that we soon get an iOS 11.2 jailbreak. All we have for now is iOS 11.1.2 jailbreak at most and the tools used for that include LiberiOS or Electra.
As it appears, it’s a good news just for jailbreak community, particularly anyone who has brought their device to iOS 11.1.2 and haven’t yet upgraded it to iOS 11.2.5. And if somebody actually takes the challenge, a jailbreak can soon be expected to liberate iOS devices running anything under iOS 11.2.2.
It is also worth mentioning here that if the above mentioned bug is used as an exploit that leads to public jailbreak release in near future, it could be used only on iPhones and iPads running iOS versions earlier than iOS 11.2.5. The simple reason is that Donenfeld himself has already given a confirmation that iOS 11.2.5 release has patched the bug. So, as Apple is not signing the firmware versions under currently available public release, that means iPhone and iPad users will not have the liberty to get back to compatible version featuring this bug.
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