https://stream.echo6.co/videos/watch/18e3ff5d-c46d-4c1b-9a44-7aee530341ef 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: https://www.youtube.com/playlist?list=PLhixgUqwRTjy0gMuT4C3bmjeZjuNQyqdx 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: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ Wed, 15 Apr 2026 09:47:06 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/18e3ff5d-c46d-4c1b-9a44-7aee530341ef All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.