Zero-Day Bug and Kernel Bug Survive Apple's iOS 11.3 Update

A zero-day bug and a kernel bug have survived Apple's iOS 11.3 update, according to Min(Spark) Zheng, an iOS security engineer at Alibaba.

Last week, Zheng tweeted:

Good~A zero-day bug survived in the iOS 11.3 update~~~




He later following up with:

kernel bug survived, too~~~

These two vulnerabilities could be key in developing a jailbreak for the iOS 11.3 software update. Unfortunately, despite demonstrating a jailbreak of iOS 11 in the past, Zheng did not make the jailbreak available to the public.


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