openssl
/
openssl
mirror of https://github.com/openssl/openssl
1
0
Fork 0
Code Issues Releases Wiki Activity

Added a fuzzer for SMIME 

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20332)
This commit is contained in:
Alex Gaynor 2023-02-18 23:43:41 -05:00 committed by Matt Caswell
parent 9a2f78e14a
commit 359d6a26d6
4 changed files with 82 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fuzz/build.info
View File

@ -9,7 +9,7 @@
-}
IF[{- !$disabled{"fuzz-afl"} || !$disabled{"fuzz-libfuzzer"} -}]
PROGRAMS{noinst}=asn1 asn1parse bignum bndiv client conf crl server x509
PROGRAMS{noinst}=asn1 asn1parse bignum bndiv client conf crl server smime x509
PROGRAMS{noinst}=punycode
IF[{- !$disabled{"cmp"} -}]
@ -68,6 +68,10 @@ IF[{- !$disabled{"fuzz-afl"} || !$disabled{"fuzz-libfuzzer"} -}]
INCLUDE[punycode]=../include {- $ex_inc -}
DEPEND[punycode]=../libcrypto.a {- $ex_lib -}
SOURCE[smime]=smime.c driver.c
INCLUDE[smime]=../include {- $ex_inc -}
DEPEND[smime]=../libcrypto ../libssl {- $ex_lib -}
SOURCE[server]=server.c driver.c fuzz_rand.c
INCLUDE[server]=../include {- $ex_inc -}
DEPEND[server]=../libcrypto ../libssl {- $ex_lib -}
@ -78,7 +82,7 @@ IF[{- !$disabled{"fuzz-afl"} || !$disabled{"fuzz-libfuzzer"} -}]
ENDIF
IF[{- !$disabled{tests} -}]
PROGRAMS{noinst}=asn1-test asn1parse-test bignum-test bndiv-test client-test conf-test crl-test server-test x509-test
PROGRAMS{noinst}=asn1-test asn1parse-test bignum-test bndiv-test client-test conf-test crl-test server-test smime-test x509-test
PROGRAMS{noinst}=punycode-test
IF[{- !$disabled{"cmp"} -}]
@ -138,6 +142,10 @@ IF[{- !$disabled{tests} -}]
INCLUDE[punycode-test]=../include
DEPEND[punycode-test]=../libcrypto.a
SOURCE[smime-test]=smime.c test-corpus.c
INCLUDE[smime-test]=../include
DEPEND[smime-test]=../libcrypto ../libssl
SOURCE[server-test]=server.c test-corpus.c fuzz_rand.c
INCLUDE[server-test]=../include
DEPEND[server-test]=../libcrypto ../libssl

BIN
fuzz/corpora/smime/b6cf925eec43acc9cc43c3104f17ac16d71439d0 Normal file
View File

Binary file not shown.

49
fuzz/smime.c Normal file
View File

@ -0,0 +1,49 @@
/*
* Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 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
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
#include "fuzzer.h"
#include <openssl/err.h>
#include <openssl/pkcs7.h>
#include <openssl/x509.h>
#include <stdio.h>
int FuzzerInitialize(int *argc, char ***argv)
{
return 1;
}
int FuzzerTestOneInput(const uint8_t *buf, size_t len)
{
BIO *b = BIO_new_mem_buf(buf, len);
PKCS7 *p7 = SMIME_read_PKCS7(b, NULL);
if (p7 != NULL) {
STACK_OF(PKCS7_SIGNER_INFO) *p7si = PKCS7_get_signer_info(p7);
int i;
for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(p7si); i++) {
STACK_OF(X509_ALGOR) *algs;
PKCS7_cert_from_signer_info(p7,
sk_PKCS7_SIGNER_INFO_value(p7si, i));
algs = PKCS7_get_smimecap(sk_PKCS7_SIGNER_INFO_value(p7si, i));
sk_X509_ALGOR_pop_free(algs, X509_ALGOR_free);
}
PKCS7_free(p7);
}
BIO_free(b);
ERR_clear_error();
return 0;
}
void FuzzerCleanup(void)
{
}

23
test/recipes/99-test_fuzz_smime.t Normal file
View File

@ -0,0 +1,23 @@
#!/usr/bin/env perl
# Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use warnings;
use OpenSSL::Test qw/:DEFAULT srctop_file/;
use OpenSSL::Test::Utils;
my $fuzzer = "smime";
setup("test_fuzz_${fuzzer}");
plan tests => 2; # one more due to below require_ok(...)
require_ok(srctop_file('test','recipes','fuzz.pl'));
fuzz_ok($fuzzer);