Advanced Fuzzing League

We want to make fuzzing better and better

Follow for updates on AFL++ & LibAFL

Advanced Fuzzing League boosted:

Want to learn how to build your own #libafl components, but never had the right project? Try working through the interactive exercises that I released today: https://github.com/addisoncrump/parking-game-fuzzer

You'll work through building your own LibAFL components with templates, allowing you to understand them progressively through the context of trying to solve "Tokyo Parking" (AKA Thinkfun's "Rush Hour") puzzles with fuzzing.

#fuzzing #aflplusplus #puzzles #rust #rustlang

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-06-28

AFL++ v4.33c released! Instrumentation of hidden edges (+5% edges), better syncing, corner case features, bug fixes :-) github.com/AFLplusplus/AFLplus #afl #fuzzer #fuzzing

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-06-12

@lcamtuf I am interested :)

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-05-30

Guess who just released #LibAFL 0.15.3?
That's right, you all did! (thank you☺️)

Highlights:

  • better forkserver
  • scriptable Lua mutations
  • SIMD performance in stable rust
  • CmpLog and RISC-V for LibAFL_Unicorn
  • TMin for LibAFL_QEMU
  • Updated Sugar for easy fuzzing

github.com/AFLplusplus/LibAFL/

#fuzzing #AFLplusplus #LibAFL #update

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-05-20

You can now replace libfuzzer with #LibAFL on Windows, thanks to @novafacing

github.com/AFLplusplus/LibAFL/

Advanced Fuzzing League boosted:
Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-04-26

AFL++ v4.32c release - mostly minor bug fixes and improvements, LLVM 20 users should update! github.com/AFLplusplus/AFLplus #afl #fuzzing #fuzzing-tools #fuzzingtools

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-04-26

AFL++ v4.32c release - mostly minor bug fixes and improvements, LLVM 20 users should update! github.com/AFLplusplus/AFLplus #afl #fuzzing #fuzzing-tools #fuzzingtools

Advanced Fuzzing League boosted:
Security Research Labssrlabs@infosec.exchange
2025-04-17

Currently available Go fuzzing tools were missing critical features - some don’t play well with the latest Go toolchain. So we set out to change that.

@bruno, Nils Ollrogge, and colleagues explored more powerful ways to fuzz Go binaries. By tapping into Go’s native instrumentation — which is compatible with libFuzzer — we enabled effective fuzzing of Go code using LibAFL.

We’ve documented our approach and shared insights in our latest blog post: srlabs.de/blog-post/golibafl--

Repo: github.com/srlabs/golibafl

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-03-31

🚨 LibAFL 0.15.2 🚨

  • Rust 2024 edition
  • LibAFL_Unicorn
  • Use LibAFL rand types for other crates
  • Allow logging to StatsD
  • LibAFL_QEMU updates like binary-only ASan in Rust 🦀🦀🦀, inputs via StdIn, better snapshots

And so much more:

github.com/AFLplusplus/LibAFL/

#LibAFL #Fuzzing #AFLplusplus

Advanced Fuzzing League boosted:
2025-03-12

If you're fuzzing C/C++ code and need more customizability, our new Testing Handbook chapter shows you exactly how to set up and use LibAFL - both as a libFuzzer drop-in and as a Rust library.
appsec.guide/docs/fuzzing/c-cp

Advanced Fuzzing League boosted:
:verified: domenukdmnk@infosec.exchange
2025-03-11

This is so cool: The LibAFL_QEMU ASan implementation was ported to rust
github.com/AFLplusplus/LibAFL/

#LibAFL #QEMU #ASan #Rust

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-03-03
Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-02-10

Just released AFL++ v4.31c: SAND mode, LLVM 20 support, Python 3.13 support, bug fixes, better performance ... github.com/AFLplusplus/AFLplus

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2025-01-21

We've just released #LibAFL 0.15.0 - A big step toward 1.0 stable!

Featuring

Advanced Fuzzing League boosted:

Curious about Rust, fuzzing, and type systems? Interested in GSoC? Then LibAFL may have a project for you.

We are currently looking to implement a generic/associated-type bounds over-specification linter as a GSoC project this year. We have opened an
RFC for developing such a project, and are looking for feedback from academics or professionals specialising in Rust tooling and type systems, so do please chime in if you're interested!

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2024-12-03

We just released AFL++ v4.30c - deprecate afl-gcc/clang, fast resume support, lots of improvements. github.com/AFLplusplus/AFLplus #afl #fuzzer #fuzzing

Advanced Fuzzing League boosted:
:verified: domenukdmnk@infosec.exchange
2024-11-18
Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2024-11-14

We've released #LibAFL 0.14 with an afl-fuzz rewrite in #LibAFL, better QEMU, FRIDA scripting, intel_pt tracing support and more!
Check it out:

github.com/AFLplusplus/LibAFL/

Advanced Fuzzing Leagueaflplusplus@infosec.exchange
2024-06-09

AFL++ v4.21 release! Fixed a regression (+5%), better seed selection (+1%), many minor fixes, LLVM 19 support github.com/AFLplusplus/AFLplus #afl #fuzz #fuzzing #fuzzer #fuzzing-tools

Advanced Fuzzing League boosted:
Security Research Labssrlabs@infosec.exchange
2024-05-08

New Research – #BogusBazaar, a sprawling criminal fake webshop network:

• 75,000+ domains
• 450,000+ credit cards
• 1 million fraud cases
• USD 50+ million in fake orders

We publish our insights together with an international team of journalists from Die Zeit (Germany), The Guardian (United Kingdom), and Le Monde (France).

srlabs.de/blog-post/bogusbazaa

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