One fuzzer found a crash. Now we need to investigate if it's a 0day or if we found the known bug. To do that we first minimize the testcase, and then perform various tests and sanity checks. Long version with Q&A: https://www.youtube.com/watch?v=uDSbYM5g-1M Grab the files: https://github.com/LiveOverflow/pwnedit/tree/main/episode05 The whole playlist:    • Sudo Vulnerability Walkthrough   Article version: https://liveoverflow.com/minimizing-afl-testcases-sudo5/ gef for gdb: https://github.com/hugsy/gef Episode 05: 00:00 - Recap of Fuzzing Experiment: afl vs afl++ 00:44 - We found a crash! 01:45 - First Look at the Crash Testcase 02:57 - Looking at Crash in GDB 04:06 - Is it a 0day or the Known Bug? 05:28 - Minimizing AFL Testcase 07:16 - Looking at Minimized Testcase 08:23 - Next Steps =[ ❤️ Support ]= → per Video: https://www.patreon.com/join/liveoverflow → per Month: null =[ 🐕 Social ]= → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/