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Dropbear SSH fuzzer working (#618)

This commit is contained in:
Matt Johnston 2017-05-22 23:24:44 +08:00 committed by Abhishek Arya
parent 10783accaf
commit e91a509873
3 changed files with 62 additions and 0 deletions
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# Copyright 2016 Google Inc.
#
# 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
MAINTAINER matt@ucc.asn.au
RUN apt-get update && apt-get install -y libz-dev autoconf mercurial
RUN hg clone -b fuzz https://secure.ucc.asn.au/hg/dropbear dropbear
RUN hg clone https://secure.ucc.asn.au/hg/dropbear-fuzzcorpus dropbear/corpus
WORKDIR dropbear
COPY build.sh *.options $SRC/

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#!/bin/sh
# Copyright 2016 Google Inc.
#
# 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.
#
################################################################################
pushd $SRC/dropbear
autoconf
autoheader
popd
$SRC/dropbear/configure --enable-fuzz
# force static zlib
sed -i 's@-lz@/usr/lib/x86_64-linux-gnu/libz.a@' Makefile
make -j$(nproc) fuzz-targets FUZZLIB=$LIB_FUZZING_ENGINE
TARGETS="$(make list-fuzz-targets)"
make -C $SRC/dropbear/corpus
cp -v $TARGETS $OUT/
cp -v $SRC/*.options $OUT/
cp -v $SRC/dropbear/corpus/*.zip $OUT/

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[libfuzzer]
max_len = 50000