Shin GRR: Make Fuzzing Fast Again

Summary: Trail of Bits released GRR, a high-speed full-system emulator it built for DARPA's Cyber Grand Challenge to fuzz program binaries, as an open-source project under a permissive license. In a demonstration, GRR found a crash in the third of six binaries communicating over IPC in a CGC challenge.
Why it matters: The tool was built on the premise that slow fuzzers miss bugs, and it is now freely available to any team that wants to run it against its own binaries.

Read the original at Trail of Bits Blog ↗