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[wolfssl] Add heapmath fuzzer (#9636) 

'heapmath' is yet another bignum implementation in wolfssl that we would
like to test.
This commit is contained in:
Guido Vranken 2023-02-10 20:58:05 +01:00 committed by GitHub
parent 16de98e2cf
commit bdd0eaa992
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 27 additions and 2 deletions
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2
projects/wolfssl/Dockerfile
View File

@ -18,7 +18,7 @@
# Please fix failure and upgrade.
FROM gcr.io/oss-fuzz-base/base-builder@sha256:111d6b9d3a52bd3392602c71dc8936c628607a7a9bc86d381db7586f9b1e840f
RUN apt-get update && apt-get install -y make autoconf automake libtool zip wget python bsdmainutils
RUN apt-get update && apt-get install -y make autoconf automake libtool zip wget python bsdmainutils libcrypt-dev:i386
RUN git clone https://github.com/wolfssl/wolfssl --depth 1 $SRC/wolfssl
RUN git clone --depth 1 https://github.com/wolfSSL/wolfssh.git
RUN git clone --depth 1 https://github.com/guidovranken/fuzzing-headers.git

27
projects/wolfssl/build.sh
View File

@ -87,6 +87,7 @@ then
# Configure Cryptofuzz
cd $SRC/cryptofuzz/
python gen_repository.py
rm extra_options.h
echo -n '"' >>extra_options.h
echo -n '--force-module=wolfCrypt ' >>extra_options.h
@ -245,6 +246,29 @@ then
unset WOLFCRYPT_LIBWOLFSSL_A_PATH
unset WOLFCRYPT_INCLUDE_PATH
# Build heapmath fuzzer
cp -R $SRC/cryptofuzz/ $SRC/cryptofuzz-heapmath/
cp -R $SRC/wolfssl/ $SRC/wolfssl-heapmath/
cd $SRC/wolfssl-heapmath/
autoreconf -ivf
CFLAGS="$CFLAGS -DHAVE_AES_ECB -DWOLFSSL_DES_ECB -DHAVE_ECC_SECPR2 -DHAVE_ECC_SECPR3 -DHAVE_ECC_BRAINPOOL -DHAVE_ECC_KOBLITZ -DWOLFSSL_ECDSA_SET_K -DWOLFSSL_ECDSA_SET_K_ONE_LOOP"
./configure $WOLFCRYPT_CONFIGURE_PARAMS --enable-heapmath
make -j$(nproc)
export CXXFLAGS="$CXXFLAGS -DCRYPTOFUZZ_NO_OPENSSL -DCRYPTOFUZZ_WOLFCRYPT -DCRYPTOFUZZ_BOTAN"
export WOLFCRYPT_LIBWOLFSSL_A_PATH="$SRC/wolfssl-heapmath/src/.libs/libwolfssl.a"
export WOLFCRYPT_INCLUDE_PATH="$SRC/wolfssl-heapmath/"
cd $SRC/cryptofuzz-heapmath/modules/wolfcrypt
make -j$(nproc)
cd $SRC/cryptofuzz-heapmath/modules/botan
make -j$(nproc)
cd $SRC/cryptofuzz-heapmath/
LIBFUZZER_LINK="$LIB_FUZZING_ENGINE" make -B -j$(nproc)
cp cryptofuzz $OUT/cryptofuzz-heapmath
CFLAGS="$OLD_CFLAGS"
CXXFLAGS="$OLD_CXXFLAGS"
unset WOLFCRYPT_LIBWOLFSSL_A_PATH
unset WOLFCRYPT_INCLUDE_PATH
mkdir $SRC/cryptofuzz-seed-corpus/
# Convert Wycheproof test vectors to Cryptofuzz corpus format
@ -298,7 +322,7 @@ then
# Pack it
cd $SRC/cryptofuzz_seed_corpus
zip -r $SRC/cryptofuzz_seed_corpus.zip .
zip -r $SRC/cryptofuzz_seed_corpus.zip . >/dev/null
# Use it as the seed corpus for each Cryptofuzz-based fuzzer
cp $SRC/cryptofuzz_seed_corpus.zip $OUT/cryptofuzz-normal-math_seed_corpus.zip
@ -306,6 +330,7 @@ then
cp $SRC/cryptofuzz_seed_corpus.zip $OUT/cryptofuzz-sp-math-all-8bit_seed_corpus.zip
cp $SRC/cryptofuzz_seed_corpus.zip $OUT/cryptofuzz-sp-math_seed_corpus.zip
cp $SRC/cryptofuzz_seed_corpus.zip $OUT/cryptofuzz-fastmath_seed_corpus.zip
cp $SRC/cryptofuzz_seed_corpus.zip $OUT/cryptofuzz-heapmath_seed_corpus.zip
# Remove files that are no longer needed to prevent running out of disk space
rm -rf $SRC/botan-p256-corpus/