Advanced Fuzzing LeagueApr 26, 2025
AFL++ v4.32c release - mostly minor bug fixes and improvements, LLVM 20 users should update! https://github.com/AFLplusplus/AFLplusplus/releases/tag/v4.32c #afl #fuzzing #fuzzing-tools #fuzzingtools
Release v4.32c · AFLplusplus/AFLplusplus

Version ++4.32c (release) Fixed a bug where after a fast restart of a full fuzzed corpus afl-fuzz terminates with "need at least one valid input seed that does not crash" Small improvements to afl...

GitHub
badsynthesisSep 6, 2023

First I thought object would be super simple compared to array...then I actually read the spec a bit more and realised there's a whole bunch of stuff. Optional fields turns this into 2^N combinations, and then to generate all states for all of those 2^N etc etc.

#jsonschema #fuzzingtools

badsynthesisSep 3, 2023

Made good progress on the project today. Array generator is now working, 4th attempt's the charm apparently. Lots of refactoring too. Overall it's getting to a neat place.

Next thing is more tests for arrays and after that comes object generator.

#jsonschema #fuzzingtools

Advanced Fuzzing LeagueAug 10, 2023
AFL++ v4.08c was just released. New mutation engine, lots of small improvements :) https://github.com/AFLplusplus/AFLplusplus/releases/tag/v4.08c #afl #fuzzing #fuzzingtools #fuzzer
Release 4.08c · AFLplusplus/AFLplusplus

Version ++4.08c (release) afl-fuzz: new mutation engine: mutations that favor discovery more paths are prefered until no new finds for 10 minutes then switching to mutations that favor triggerin...

GitHub
The Hacker‘s ChoiceJul 5, 2023
The reason why you should always update AFL++ to a current version - it gets better and better :-) and upcoming 4.08 will improve again ... #fuzzer #fuzzing #fuzzingtools
Advanced Fuzzing LeagueJun 12, 2023
AFL++ 4.07c release: 3 new custom mutators, full LLVM 13-17 support, afl-cmin parallel support, bug fixes and more!
https://github.com/AFLplusplus/AFLplusplus/releases/tag/4.07c #afl #fuzzer #fuzzing #fuzzingtools
Release 4.07c · AFLplusplus/AFLplusplus

Version ++4.07c (release) afl-fuzz: reverse reading the seeds only on restarts (increases performance) new env AFL_POST_PROCESS_KEEP_ORIGINAL to keep the orignal data before post process on finds...

GitHub