Ned Williamson of Google Project Zero explains how he discovered the Sock Puppet vulnerability affecting the XNU Kernel in iOS and macOS. He also shows us what primitives the bug provides and how it can be exploited. This is only the first stage of a Jailbreak, but it's a very valuable kernel bug.

Google Project Zero Blog: https://googleprojectzero.blogspot.co...
Ned on Twitter: https://twitter.com/NedWilliamson
Ned Williamson - Modern Source Fuzzing (OffensiveCon19): https://www.youtube.com/watch?v=xzG0p...

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