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@vanhauser-thc vanhauser-thc released this 26 Jul 12:24
2.53c
f97409d

Second release of afl++ which besides the new features from the previous version has the following important changes:

  • imported the few minor changes from the 2.53b release
  • unicorn_mode got added - thanks to domenukk for the patch!
  • fix llvm_mode AFL_TRACE_PC with modern llvm
  • fix a crash in qemu_mode which also exists in stock afl
  • added libcompcov, a laf-intel implementation for qemu! :) see qemu_mode/libcompcov/README.libcompcov
  • updated afl-fuzz and afl-system-config for new scaling governor location in modern kernels
  • all queue, hang and crash files now have their discovery time in their name
  • if llvm_mode was compiled, afl-clang/afl-clang++ will point to these instead of afl-gcc
  • added instrim, a much faster llvm_mode instrumentation at the cost of path discovery. See llvm_mode/README.instrim (https://github.com/csienslab/instrim)
  • added MOpt (github.com/puppet-meteor/MOpt-AFL) mode, see docs/README.MOpt
  • added code to make it more portable to other platforms than Intel Linux
  • added never zero counters for afl-gcc and optionally (because of an optimization issue in llvm < 9) for llvm_mode (AFL_LLVM_NEVER_ZERO=1)
  • added a new doc about binary only fuzzing: docs/binaryonly_fuzzing.txt
  • more cpu power for afl-system-config
  • added forkserver patch to afl-tmin, makes it much faster (originally from github.com/nccgroup/TriforceAFL)
  • added whitelist support for llvm_mode via AFL_LLVM_WHITELIST to allow only to instrument what is actually interesting. Gives more speed and less map pollution (originally by choller@mozilla)
  • added Python Module mutator support, python2.7-dev is autodetected. see docs/python_mutators.txt (originally by choller@mozilla)
  • added AFL_CAL_FAST for slow applications and AFL_DEBUG_CHILD_OUTPUT for debugging
  • added -V time and -E execs option to better comparison runs, runs afl-fuzz for a specific time/executions.
  • added a -s seed switch to allow afl run with a fixed initial seed that is not updated. This is good for performance and path discovery tests as the random numbers are deterministic then
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