Barbervisor: Journey developing a snapshot fuzzer with Intel VT-x

By Cory Duplantis.

One of the ways vulnerability researchers find bugs is with fuzzing. At a high level, fuzzing is the process of generating and mutating random inputs for a given target to crash it. In 2017, I started developing a bare metal hypervisor for the purposes of snapshot fuzzing: fuzzing small subsets of programs from a known, static starting state.

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