diff --git a/projects/msgpack-python/Dockerfile b/projects/msgpack-python/Dockerfile new file mode 100644 index 000000000..bbac2a576 --- /dev/null +++ b/projects/msgpack-python/Dockerfile @@ -0,0 +1,19 @@ +#!/usr/bin/python3 +# Copyright 2022 Google LLC +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +FROM gcr.io/oss-fuzz-base/base-builder-python +RUN git clone https://github.com/msgpack/msgpack-python msgpack-python +RUN python3 -m pip install --upgrade pip && pip install pysecsan +COPY *.sh *py $SRC/ +WORKDIR $SRC/msgpack-python diff --git a/projects/msgpack-python/build.sh b/projects/msgpack-python/build.sh new file mode 100644 index 000000000..338e12e52 --- /dev/null +++ b/projects/msgpack-python/build.sh @@ -0,0 +1,22 @@ +#!/bin/bash -eu +# Copyright 2022 Google LLC +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +################################################################################ +pip3 install . + +# Build fuzzers in $OUT. +for fuzzer in $(find $SRC -name 'fuzz_*.py'); do + compile_python_fuzzer $fuzzer +done diff --git a/projects/msgpack-python/fuzz_unpack.py b/projects/msgpack-python/fuzz_unpack.py new file mode 100644 index 000000000..015859175 --- /dev/null +++ b/projects/msgpack-python/fuzz_unpack.py @@ -0,0 +1,52 @@ +#!/usr/bin/python3 +# Copyright 2022 Google LLC +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import sys +import atheris + +import io +import msgpack + +import pysecsan +pysecsan.add_hooks() + +def TestOneInput(data): + b = io.BytesIO(data) + r = None + try: + r = msgpack.unpack(b) + except ( + # Catch exceptions as indicated: + # https://github.com/msgpack/msgpack-python/blob/main/msgpack/fallback.py#L110-L121 + ValueError, + msgpack.exceptions.FormatError, + msgpack.exceptions.StackError, + msgpack.exceptions.ExtraData + ) as e: + pass + + if r is not None: + del r + del b + + +def main(): + atheris.instrument_all() + atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) + atheris.Fuzz() + + +if __name__ == "__main__": + main() diff --git a/projects/msgpack-python/project.yaml b/projects/msgpack-python/project.yaml new file mode 100644 index 000000000..df82ab01e --- /dev/null +++ b/projects/msgpack-python/project.yaml @@ -0,0 +1,10 @@ +fuzzing_engines: +- libfuzzer +homepage: https://github.com/msgpack/msgpack-python +language: python +main_repo: https://github.com/msgpack/msgpack-python +sanitizers: +- address +- undefined +vendor_ccs: +- david@adalogics.com