v2.5.0

• Restructured internal imports to make pip package cleaner.
• AFL++ support.
• Many bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.5.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

Reproduce tool update

Support 3.9

2.4.0

• Various improvements for libClusterFuzz.
• Local development improvements.
• Add AFL support to the fuzzing engine pipeline.
• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.4.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.3.0

• Improved ML-based fuzzing.
• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.3.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.2.1

• Fix a breaking App Engine bug from 2.2.0

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.2.1

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.2.0

• Replaced webapp2 usage with Flask.
• Improved Syzkaller support.
• Added support for generic blackbox fuzzers.
• Removed remaining Python 2 compatibility code.
• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.2.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.1.0

• Jobs page is now paginated.
  • This version requires new DB migrations due to addition of search keywords in Jobs.
  • To perform migrations, please use:

python butler.py run -c path/to/config --non-dry-run migration.jobs_keywords

• Jobs page now has the ability to specify Fuzzer-Job mappings.
• Past crash regressions are now stored in the corpus backup.
• Set handle_=2 by default for sanitizer options in engine jobs.
• Fix local GCS issues.
• Remove more Python 2 support.
• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.1.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.0.2

• Improved Syzkaller support.
• Support narrower bisection for regression/fix ranges.
• Improve Rust crash detection signatures.
• Improved Android KASan support.
• Batch datastore operations more aggressively.
• Improved grouping of crashes involving inline frames.
• Enable entropic fuzzing strategy in libFuzzer.
• Test past crash regressions in corpus pruning task.
• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.0.2

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.0.1

• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.0.1

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.

2.0.0

• Various bug fixes.

Please download this release by checking out the release tag in a git checkout:

git checkout tags/v2.0.0

NOTE: Archived versions of ClusterFuzz below do not work with many butler.py commands.