Merge branch 'fuzzers' into 'master'

Migrated fuzzers from the oss-repo to here.

Also added a new private_key_parser fuzzer.

See merge request !184

5 files changed, 418 insertions, 0 deletions

diff --git a/devel/fuzz/README.md b/devel/fuzz/README.md
new file mode 100644
index 0000000000..f648dcab8d
--- /dev/null
+++ b/devel/fuzz/README.md
@@ -0,0 +1,7 @@
+# Fuzzers
+
+These are fuzzers designed for use with `libFuzzer`. Currently they are
+primarily run on Google's OSS-Fuzz (https://github.com/google/oss-fuzz/).
+
+OSS-Fuzz will automatically locate and compile any `*_fuzzer.cc` files and
+assume they are fuzzers it should run.
diff --git a/devel/fuzz/gnutls_client_fuzzer.cc b/devel/fuzz/gnutls_client_fuzzer.cc
new file mode 100644
index 0000000000..b155ca5edf
--- /dev/null
+++ b/devel/fuzz/gnutls_client_fuzzer.cc
@@ -0,0 +1,73 @@
+/*
+# 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.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <gnutls/gnutls.h>
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    int res;
+    gnutls_session_t session;
+    gnutls_certificate_credentials_t xcred;
+
+    int socket_fds[2];
+    res = socketpair(AF_UNIX, SOCK_STREAM, 0, socket_fds);
+    assert(res >= 0);
+    ssize_t send_res = send(socket_fds[1], data, size, 0);
+    assert(send_res == size);
+    res = shutdown(socket_fds[1], SHUT_WR);
+    assert(res == 0);
+
+    res = gnutls_init(&session, GNUTLS_CLIENT);
+    assert(res >= 0);
+
+    res = gnutls_certificate_allocate_credentials(&xcred);
+    assert(res >= 0);
+    res = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+    assert(res >= 0);
+
+    res = gnutls_set_default_priority(session);
+    assert(res >= 0);
+
+    gnutls_transport_set_int(session, socket_fds[0]);
+
+    do {
+        res = gnutls_handshake(session);
+    } while (res < 0 && gnutls_error_is_fatal(res) == 0);
+    if (res >= 0) {
+        while (true) {
+            char buf[16384];
+            res = gnutls_record_recv(session, buf, sizeof(buf));
+            if (res <= 0) {
+                break;
+            }
+        }
+    }
+
+    close(socket_fds[0]);
+    close(socket_fds[1]);
+    gnutls_deinit(session);
+    gnutls_certificate_free_credentials(xcred);
+    return 0;
+}
diff --git a/devel/fuzz/gnutls_private_key_parser_fuzzer.cc b/devel/fuzz/gnutls_private_key_parser_fuzzer.cc
new file mode 100644
index 0000000000..63d8163fa7
--- /dev/null
+++ b/devel/fuzz/gnutls_private_key_parser_fuzzer.cc
@@ -0,0 +1,41 @@
+/*
+# 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.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    gnutls_datum_t raw;
+    gnutls_x509_privkey_t key;
+    int ret;
+
+    raw.data = (unsigned char *)data;
+    raw.size = size;
+
+    ret = gnutls_x509_privkey_init(&key);
+    assert(ret >= 0);
+
+    ret = gnutls_x509_privkey_import(key, &raw, GNUTLS_X509_FMT_DER);
+
+    gnutls_x509_privkey_deinit(key);
+    return 0;
+}
diff --git a/devel/fuzz/gnutls_server_fuzzer.cc b/devel/fuzz/gnutls_server_fuzzer.cc
new file mode 100644
index 0000000000..e864f10354
--- /dev/null
+++ b/devel/fuzz/gnutls_server_fuzzer.cc
@@ -0,0 +1,250 @@
+/*
+# 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.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <stdint.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <gnutls/gnutls.h>
+
+static const uint8_t kCertificateDER[] = {
+    0x30, 0x82, 0x02, 0xff, 0x30, 0x82, 0x01, 0xe7, 0xa0, 0x03, 0x02, 0x01,
+    0x02, 0x02, 0x11, 0x00, 0xb1, 0x84, 0xee, 0x34, 0x99, 0x98, 0x76, 0xfb,
+    0x6f, 0xb2, 0x15, 0xc8, 0x47, 0x79, 0x05, 0x9b, 0x30, 0x0d, 0x06, 0x09,
+    0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30,
+    0x12, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x07,
+    0x41, 0x63, 0x6d, 0x65, 0x20, 0x43, 0x6f, 0x30, 0x1e, 0x17, 0x0d, 0x31,
+    0x35, 0x31, 0x31, 0x30, 0x37, 0x30, 0x30, 0x32, 0x34, 0x35, 0x36, 0x5a,
+    0x17, 0x0d, 0x31, 0x36, 0x31, 0x31, 0x30, 0x36, 0x30, 0x30, 0x32, 0x34,
+    0x35, 0x36, 0x5a, 0x30, 0x12, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55,
+    0x04, 0x0a, 0x13, 0x07, 0x41, 0x63, 0x6d, 0x65, 0x20, 0x43, 0x6f, 0x30,
+    0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30,
+    0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xce, 0x47, 0xcb, 0x11,
+    0xbb, 0xd2, 0x9d, 0x8e, 0x9e, 0xd2, 0x1e, 0x14, 0xaf, 0xc7, 0xea, 0xb6,
+    0xc9, 0x38, 0x2a, 0x6f, 0xb3, 0x7e, 0xfb, 0xbc, 0xfc, 0x59, 0x42, 0xb9,
+    0x56, 0xf0, 0x4c, 0x3f, 0xf7, 0x31, 0x84, 0xbe, 0xac, 0x03, 0x9e, 0x71,
+    0x91, 0x85, 0xd8, 0x32, 0xbd, 0x00, 0xea, 0xac, 0x65, 0xf6, 0x03, 0xc8,
+    0x0f, 0x8b, 0xfd, 0x6e, 0x58, 0x88, 0x04, 0x41, 0x92, 0x74, 0xa6, 0x57,
+    0x2e, 0x8e, 0x88, 0xd5, 0x3d, 0xda, 0x14, 0x3e, 0x63, 0x88, 0x22, 0xe3,
+    0x53, 0xe9, 0xba, 0x39, 0x09, 0xac, 0xfb, 0xd0, 0x4c, 0xf2, 0x3c, 0x20,
+    0xd6, 0x97, 0xe6, 0xed, 0xf1, 0x62, 0x1e, 0xe5, 0xc9, 0x48, 0xa0, 0xca,
+    0x2e, 0x3c, 0x14, 0x5a, 0x82, 0xd4, 0xed, 0xb1, 0xe3, 0x43, 0xc1, 0x2a,
+    0x59, 0xa5, 0xb9, 0xc8, 0x48, 0xa7, 0x39, 0x23, 0x74, 0xa7, 0x37, 0xb0,
+    0x6f, 0xc3, 0x64, 0x99, 0x6c, 0xa2, 0x82, 0xc8, 0xf6, 0xdb, 0x86, 0x40,
+    0xce, 0xd1, 0x85, 0x9f, 0xce, 0x69, 0xf4, 0x15, 0x2a, 0x23, 0xca, 0xea,
+    0xb7, 0x7b, 0xdf, 0xfb, 0x43, 0x5f, 0xff, 0x7a, 0x49, 0x49, 0x0e, 0xe7,
+    0x02, 0x51, 0x45, 0x13, 0xe8, 0x90, 0x64, 0x21, 0x0c, 0x26, 0x2b, 0x5d,
+    0xfc, 0xe4, 0xb5, 0x86, 0x89, 0x43, 0x22, 0x4c, 0xf3, 0x3b, 0xf3, 0x09,
+    0xc4, 0xa4, 0x10, 0x80, 0xf2, 0x46, 0xe2, 0x46, 0x8f, 0x76, 0x50, 0xbf,
+    0xaf, 0x2b, 0x90, 0x1b, 0x78, 0xc7, 0xcf, 0xc1, 0x77, 0xd0, 0xfb, 0xa9,
+    0xfb, 0xc9, 0x66, 0x5a, 0xc5, 0x9b, 0x31, 0x41, 0x67, 0x01, 0xbe, 0x33,
+    0x10, 0xba, 0x05, 0x58, 0xed, 0x76, 0x53, 0xde, 0x5d, 0xc1, 0xe8, 0xbb,
+    0x9f, 0xf1, 0xcd, 0xfb, 0xdf, 0x64, 0x7f, 0xd7, 0x18, 0xab, 0x0f, 0x94,
+    0x28, 0x95, 0x4a, 0xcc, 0x6a, 0xa9, 0x50, 0xc7, 0x05, 0x47, 0x10, 0x41,
+    0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x50, 0x30, 0x4e, 0x30, 0x0e, 0x06,
+    0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x05,
+    0xa0, 0x30, 0x13, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x0c, 0x30, 0x0a,
+    0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x30, 0x0c,
+    0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 0x00,
+    0x30, 0x19, 0x06, 0x03, 0x55, 0x1d, 0x11, 0x04, 0x12, 0x30, 0x10, 0x82,
+    0x0e, 0x66, 0x75, 0x7a, 0x7a, 0x2e, 0x62, 0x6f, 0x72, 0x69, 0x6e, 0x67,
+    0x73, 0x73, 0x6c, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+    0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x92,
+    0xde, 0xef, 0x96, 0x06, 0x7b, 0xff, 0x71, 0x7d, 0x4e, 0xa0, 0x7d, 0xae,
+    0xb8, 0x22, 0xb4, 0x2c, 0xf7, 0x96, 0x9c, 0x37, 0x1d, 0x8f, 0xe7, 0xd9,
+    0x47, 0xff, 0x3f, 0xe9, 0x35, 0x95, 0x0e, 0xdd, 0xdc, 0x7f, 0xc8, 0x8a,
+    0x1e, 0x36, 0x1d, 0x38, 0x47, 0xfc, 0x76, 0xd2, 0x1f, 0x98, 0xa1, 0x36,
+    0xac, 0xc8, 0x70, 0x38, 0x0a, 0x3d, 0x51, 0x8d, 0x0f, 0x03, 0x1b, 0xef,
+    0x62, 0xa1, 0xcb, 0x2b, 0x4a, 0x8c, 0x12, 0x2b, 0x54, 0x50, 0x9a, 0x6b,
+    0xfe, 0xaf, 0xd9, 0xf6, 0xbf, 0x58, 0x11, 0x58, 0x5e, 0xe5, 0x86, 0x1e,
+    0x3b, 0x6b, 0x30, 0x7e, 0x72, 0x89, 0xe8, 0x6b, 0x7b, 0xb7, 0xaf, 0xef,
+    0x8b, 0xa9, 0x3e, 0xb0, 0xcd, 0x0b, 0xef, 0xb0, 0x0c, 0x96, 0x2b, 0xc5,
+    0x3b, 0xd5, 0xf1, 0xc2, 0xae, 0x3a, 0x60, 0xd9, 0x0f, 0x75, 0x37, 0x55,
+    0x4d, 0x62, 0xd2, 0xed, 0x96, 0xac, 0x30, 0x6b, 0xda, 0xa1, 0x48, 0x17,
+    0x96, 0x23, 0x85, 0x9a, 0x57, 0x77, 0xe9, 0x22, 0xa2, 0x37, 0x03, 0xba,
+    0x49, 0x77, 0x40, 0x3b, 0x76, 0x4b, 0xda, 0xc1, 0x04, 0x57, 0x55, 0x34,
+    0x22, 0x83, 0x45, 0x29, 0xab, 0x2e, 0x11, 0xff, 0x0d, 0xab, 0x55, 0xb1,
+    0xa7, 0x58, 0x59, 0x05, 0x25, 0xf9, 0x1e, 0x3d, 0xb7, 0xac, 0x04, 0x39,
+    0x2c, 0xf9, 0xaf, 0xb8, 0x68, 0xfb, 0x8e, 0x35, 0x71, 0x32, 0xff, 0x70,
+    0xe9, 0x46, 0x6d, 0x5c, 0x06, 0x90, 0x88, 0x23, 0x48, 0x0c, 0x50, 0xeb,
+    0x0a, 0xa9, 0xae, 0xe8, 0xfc, 0xbe, 0xa5, 0x76, 0x94, 0xd7, 0x64, 0x22,
+    0x38, 0x98, 0x17, 0xa4, 0x3a, 0xa7, 0x59, 0x9f, 0x1d, 0x3b, 0x75, 0x90,
+    0x1a, 0x81, 0xef, 0x19, 0xfb, 0x2b, 0xb7, 0xa7, 0x64, 0x61, 0x22, 0xa4,
+    0x6f, 0x7b, 0xfa, 0x58, 0xbb, 0x8c, 0x4e, 0x77, 0x67, 0xd0, 0x5d, 0x58,
+    0x76, 0x8a, 0xbb,
+};
+
+static const uint8_t kRSAPrivateKeyDER[] = {
+    0x30, 0x82, 0x04, 0xa5, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00,
+    0xce, 0x47, 0xcb, 0x11, 0xbb, 0xd2, 0x9d, 0x8e, 0x9e, 0xd2, 0x1e, 0x14,
+    0xaf, 0xc7, 0xea, 0xb6, 0xc9, 0x38, 0x2a, 0x6f, 0xb3, 0x7e, 0xfb, 0xbc,
+    0xfc, 0x59, 0x42, 0xb9, 0x56, 0xf0, 0x4c, 0x3f, 0xf7, 0x31, 0x84, 0xbe,
+    0xac, 0x03, 0x9e, 0x71, 0x91, 0x85, 0xd8, 0x32, 0xbd, 0x00, 0xea, 0xac,
+    0x65, 0xf6, 0x03, 0xc8, 0x0f, 0x8b, 0xfd, 0x6e, 0x58, 0x88, 0x04, 0x41,
+    0x92, 0x74, 0xa6, 0x57, 0x2e, 0x8e, 0x88, 0xd5, 0x3d, 0xda, 0x14, 0x3e,
+    0x63, 0x88, 0x22, 0xe3, 0x53, 0xe9, 0xba, 0x39, 0x09, 0xac, 0xfb, 0xd0,
+    0x4c, 0xf2, 0x3c, 0x20, 0xd6, 0x97, 0xe6, 0xed, 0xf1, 0x62, 0x1e, 0xe5,
+    0xc9, 0x48, 0xa0, 0xca, 0x2e, 0x3c, 0x14, 0x5a, 0x82, 0xd4, 0xed, 0xb1,
+    0xe3, 0x43, 0xc1, 0x2a, 0x59, 0xa5, 0xb9, 0xc8, 0x48, 0xa7, 0x39, 0x23,
+    0x74, 0xa7, 0x37, 0xb0, 0x6f, 0xc3, 0x64, 0x99, 0x6c, 0xa2, 0x82, 0xc8,
+    0xf6, 0xdb, 0x86, 0x40, 0xce, 0xd1, 0x85, 0x9f, 0xce, 0x69, 0xf4, 0x15,
+    0x2a, 0x23, 0xca, 0xea, 0xb7, 0x7b, 0xdf, 0xfb, 0x43, 0x5f, 0xff, 0x7a,
+    0x49, 0x49, 0x0e, 0xe7, 0x02, 0x51, 0x45, 0x13, 0xe8, 0x90, 0x64, 0x21,
+    0x0c, 0x26, 0x2b, 0x5d, 0xfc, 0xe4, 0xb5, 0x86, 0x89, 0x43, 0x22, 0x4c,
+    0xf3, 0x3b, 0xf3, 0x09, 0xc4, 0xa4, 0x10, 0x80, 0xf2, 0x46, 0xe2, 0x46,
+    0x8f, 0x76, 0x50, 0xbf, 0xaf, 0x2b, 0x90, 0x1b, 0x78, 0xc7, 0xcf, 0xc1,
+    0x77, 0xd0, 0xfb, 0xa9, 0xfb, 0xc9, 0x66, 0x5a, 0xc5, 0x9b, 0x31, 0x41,
+    0x67, 0x01, 0xbe, 0x33, 0x10, 0xba, 0x05, 0x58, 0xed, 0x76, 0x53, 0xde,
+    0x5d, 0xc1, 0xe8, 0xbb, 0x9f, 0xf1, 0xcd, 0xfb, 0xdf, 0x64, 0x7f, 0xd7,
+    0x18, 0xab, 0x0f, 0x94, 0x28, 0x95, 0x4a, 0xcc, 0x6a, 0xa9, 0x50, 0xc7,
+    0x05, 0x47, 0x10, 0x41, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x82, 0x01,
+    0x01, 0x00, 0xa8, 0x47, 0xb9, 0x4a, 0x06, 0x47, 0x93, 0x71, 0x3d, 0xef,
+    0x7b, 0xca, 0xb4, 0x7c, 0x0a, 0xe6, 0x82, 0xd0, 0xe7, 0x0d, 0xa9, 0x08,
+    0xf6, 0xa4, 0xfd, 0xd8, 0x73, 0xae, 0x6f, 0x56, 0x29, 0x5e, 0x25, 0x72,
+    0xa8, 0x30, 0x44, 0x73, 0xcf, 0x56, 0x26, 0xb9, 0x61, 0xde, 0x42, 0x81,
+    0xf4, 0xf0, 0x1f, 0x5d, 0xcb, 0x47, 0xf2, 0x26, 0xe9, 0xe0, 0x93, 0x28,
+    0xa3, 0x10, 0x3b, 0x42, 0x1e, 0x51, 0x11, 0x12, 0x06, 0x5e, 0xaf, 0xce,
+    0xb0, 0xa5, 0x14, 0xdd, 0x82, 0x58, 0xa1, 0xa4, 0x12, 0xdf, 0x65, 0x1d,
+    0x51, 0x70, 0x64, 0xd5, 0x58, 0x68, 0x11, 0xa8, 0x6a, 0x23, 0xc2, 0xbf,
+    0xa1, 0x25, 0x24, 0x47, 0xb3, 0xa4, 0x3c, 0x83, 0x96, 0xb7, 0x1f, 0xf4,
+    0x44, 0xd4, 0xd1, 0xe9, 0xfc, 0x33, 0x68, 0x5e, 0xe2, 0x68, 0x99, 0x9c,
+    0x91, 0xe8, 0x72, 0xc9, 0xd7, 0x8c, 0x80, 0x20, 0x8e, 0x77, 0x83, 0x4d,
+    0xe4, 0xab, 0xf9, 0x74, 0xa1, 0xdf, 0xd3, 0xc0, 0x0d, 0x5b, 0x05, 0x51,
+    0xc2, 0x6f, 0xb2, 0x91, 0x02, 0xec, 0xc0, 0x02, 0x1a, 0x5c, 0x91, 0x05,
+    0xf1, 0xe3, 0xfa, 0x65, 0xc2, 0xad, 0x24, 0xe6, 0xe5, 0x3c, 0xb6, 0x16,
+    0xf1, 0xa1, 0x67, 0x1a, 0x9d, 0x37, 0x56, 0xbf, 0x01, 0xd7, 0x3b, 0x35,
+    0x30, 0x57, 0x73, 0xf4, 0xf0, 0x5e, 0xa7, 0xe8, 0x0a, 0xc1, 0x94, 0x17,
+    0xcf, 0x0a, 0xbd, 0xf5, 0x31, 0xa7, 0x2d, 0xf7, 0xf5, 0xd9, 0x8c, 0xc2,
+    0x01, 0xbd, 0xda, 0x16, 0x8e, 0xb9, 0x30, 0x40, 0xa6, 0x6e, 0xbd, 0xcd,
+    0x4d, 0x84, 0x67, 0x4e, 0x0b, 0xce, 0xd5, 0xef, 0xf8, 0x08, 0x63, 0x02,
+    0xc6, 0xc7, 0xf7, 0x67, 0x92, 0xe2, 0x23, 0x9d, 0x27, 0x22, 0x1d, 0xc6,
+    0x67, 0x5e, 0x66, 0xbf, 0x03, 0xb8, 0xa9, 0x67, 0xd4, 0x39, 0xd8, 0x75,
+    0xfa, 0xe8, 0xed, 0x56, 0xb8, 0x81, 0x02, 0x81, 0x81, 0x00, 0xf7, 0x46,
+    0x68, 0xc6, 0x13, 0xf8, 0xba, 0x0f, 0x83, 0xdb, 0x05, 0xa8, 0x25, 0x00,
+    0x70, 0x9c, 0x9e, 0x8b, 0x12, 0x34, 0x0d, 0x96, 0xcf, 0x0d, 0x98, 0x9b,
+    0x8d, 0x9c, 0x96, 0x78, 0xd1, 0x3c, 0x01, 0x8c, 0xb9, 0x35, 0x5c, 0x20,
+    0x42, 0xb4, 0x38, 0xe3, 0xd6, 0x54, 0xe7, 0x55, 0xd6, 0x26, 0x8a, 0x0c,
+    0xf6, 0x1f, 0xe0, 0x04, 0xc1, 0x22, 0x42, 0x19, 0x61, 0xc4, 0x94, 0x7c,
+    0x07, 0x2e, 0x80, 0x52, 0xfe, 0x8d, 0xe6, 0x92, 0x3a, 0x91, 0xfe, 0x72,
+    0x99, 0xe1, 0x2a, 0x73, 0x76, 0xb1, 0x24, 0x20, 0x67, 0xde, 0x28, 0xcb,
+    0x0e, 0xe6, 0x52, 0xb5, 0xfa, 0xfb, 0x8b, 0x1e, 0x6a, 0x1d, 0x09, 0x26,
+    0xb9, 0xa7, 0x61, 0xba, 0xf8, 0x79, 0xd2, 0x66, 0x57, 0x28, 0xd7, 0x31,
+    0xb5, 0x0b, 0x27, 0x19, 0x1e, 0x6f, 0x46, 0xfc, 0x54, 0x95, 0xeb, 0x78,
+    0x01, 0xb6, 0xd9, 0x79, 0x5a, 0x4d, 0x02, 0x81, 0x81, 0x00, 0xd5, 0x8f,
+    0x16, 0x53, 0x2f, 0x57, 0x93, 0xbf, 0x09, 0x75, 0xbf, 0x63, 0x40, 0x3d,
+    0x27, 0xfd, 0x23, 0x21, 0xde, 0x9b, 0xe9, 0x73, 0x3f, 0x49, 0x02, 0xd2,
+    0x38, 0x96, 0xcf, 0xc3, 0xba, 0x92, 0x07, 0x87, 0x52, 0xa9, 0x35, 0xe3,
+    0x0c, 0xe4, 0x2f, 0x05, 0x7b, 0x37, 0xa5, 0x40, 0x9c, 0x3b, 0x94, 0xf7,
+    0xad, 0xa0, 0xee, 0x3a, 0xa8, 0xfb, 0x1f, 0x11, 0x1f, 0xd8, 0x9a, 0x80,
+    0x42, 0x3d, 0x7f, 0xa4, 0xb8, 0x9a, 0xaa, 0xea, 0x72, 0xc1, 0xe3, 0xed,
+    0x06, 0x60, 0x92, 0x37, 0xf9, 0xba, 0xfb, 0x9e, 0xed, 0x05, 0xa6, 0xd4,
+    0x72, 0x68, 0x4f, 0x63, 0xfe, 0xd6, 0x10, 0x0d, 0x4f, 0x0a, 0x93, 0xc6,
+    0xb9, 0xd7, 0xaf, 0xfd, 0xd9, 0x57, 0x7d, 0xcb, 0x75, 0xe8, 0x93, 0x2b,
+    0xae, 0x4f, 0xea, 0xd7, 0x30, 0x0b, 0x58, 0x44, 0x82, 0x0f, 0x84, 0x5d,
+    0x62, 0x11, 0x78, 0xea, 0x5f, 0xc5, 0x02, 0x81, 0x81, 0x00, 0x82, 0x0c,
+    0xc1, 0xe6, 0x0b, 0x72, 0xf1, 0x48, 0x5f, 0xac, 0xbd, 0x98, 0xe5, 0x7d,
+    0x09, 0xbd, 0x15, 0x95, 0x47, 0x09, 0xa1, 0x6c, 0x03, 0x91, 0xbf, 0x05,
+    0x70, 0xc1, 0x3e, 0x52, 0x64, 0x99, 0x0e, 0xa7, 0x98, 0x70, 0xfb, 0xf6,
+    0xeb, 0x9e, 0x25, 0x9d, 0x8e, 0x88, 0x30, 0xf2, 0xf0, 0x22, 0x6c, 0xd0,
+    0xcc, 0x51, 0x8f, 0x5c, 0x70, 0xc7, 0x37, 0xc4, 0x69, 0xab, 0x1d, 0xfc,
+    0xed, 0x3a, 0x03, 0xbb, 0xa2, 0xad, 0xb6, 0xea, 0x89, 0x6b, 0x67, 0x4b,
+    0x96, 0xaa, 0xd9, 0xcc, 0xc8, 0x4b, 0xfa, 0x18, 0x21, 0x08, 0xb2, 0xa3,
+    0xb9, 0x3e, 0x61, 0x99, 0xdc, 0x5a, 0x97, 0x9c, 0x73, 0x6a, 0xb9, 0xf9,
+    0x68, 0x03, 0x24, 0x5f, 0x55, 0x77, 0x9c, 0xb4, 0xbe, 0x7a, 0x78, 0x53,
+    0x68, 0x48, 0x69, 0x53, 0xc8, 0xb1, 0xf5, 0xbf, 0x98, 0x2d, 0x11, 0x1e,
+    0x98, 0xa8, 0x36, 0x50, 0xa0, 0xb1, 0x02, 0x81, 0x81, 0x00, 0x90, 0x88,
+    0x30, 0x71, 0xc7, 0xfe, 0x9b, 0x6d, 0x95, 0x37, 0x6d, 0x79, 0xfc, 0x85,
+    0xe7, 0x44, 0x78, 0xbc, 0x79, 0x6e, 0x47, 0x86, 0xc9, 0xf3, 0xdd, 0xc6,
+    0xec, 0xa9, 0x94, 0x9f, 0x40, 0xeb, 0x87, 0xd0, 0xdb, 0xee, 0xcd, 0x1b,
+    0x87, 0x23, 0xff, 0x76, 0xd4, 0x37, 0x8a, 0xcd, 0xb9, 0x6e, 0xd1, 0x98,
+    0xf6, 0x97, 0x8d, 0xe3, 0x81, 0x6d, 0xc3, 0x4e, 0xd1, 0xa0, 0xc4, 0x9f,
+    0xbd, 0x34, 0xe5, 0xe8, 0x53, 0x4f, 0xca, 0x10, 0xb5, 0xed, 0xe7, 0x16,
+    0x09, 0x54, 0xde, 0x60, 0xa7, 0xd1, 0x16, 0x6e, 0x2e, 0xb7, 0xbe, 0x7a,
+    0xd5, 0x9b, 0x26, 0xef, 0xe4, 0x0e, 0x77, 0xfa, 0xa9, 0xdd, 0xdc, 0xb9,
+    0x88, 0x19, 0x23, 0x70, 0xc7, 0xe1, 0x60, 0xaf, 0x8c, 0x73, 0x04, 0xf7,
+    0x71, 0x17, 0x81, 0x36, 0x75, 0xbb, 0x97, 0xd7, 0x75, 0xb6, 0x8e, 0xbc,
+    0xac, 0x9c, 0x6a, 0x9b, 0x24, 0x89, 0x02, 0x81, 0x80, 0x5a, 0x2b, 0xc7,
+    0x6b, 0x8c, 0x65, 0xdb, 0x04, 0x73, 0xab, 0x25, 0xe1, 0x5b, 0xbc, 0x3c,
+    0xcf, 0x5a, 0x3c, 0x04, 0xae, 0x97, 0x2e, 0xfd, 0xa4, 0x97, 0x1f, 0x05,
+    0x17, 0x27, 0xac, 0x7c, 0x30, 0x85, 0xb4, 0x82, 0x3f, 0x5b, 0xb7, 0x94,
+    0x3b, 0x7f, 0x6c, 0x0c, 0xc7, 0x16, 0xc6, 0xa0, 0xbd, 0x80, 0xb0, 0x81,
+    0xde, 0xa0, 0x23, 0xa6, 0xf6, 0x75, 0x33, 0x51, 0x35, 0xa2, 0x75, 0x55,
+    0x70, 0x4d, 0x42, 0xbb, 0xcf, 0x54, 0xe4, 0xdb, 0x2d, 0x88, 0xa0, 0x7a,
+    0xf2, 0x17, 0xa7, 0xdd, 0x13, 0x44, 0x9f, 0x5f, 0x6b, 0x2c, 0x42, 0x42,
+    0x8b, 0x13, 0x4d, 0xf9, 0x5b, 0xf8, 0x33, 0x42, 0xd9, 0x9e, 0x50, 0x1c,
+    0x7c, 0xbc, 0xfa, 0x62, 0x85, 0x0b, 0xcf, 0x99, 0xda, 0x9e, 0x04, 0x90,
+    0xb2, 0xc6, 0xb2, 0x0a, 0x2a, 0x7c, 0x6d, 0x6a, 0x40, 0xfc, 0xf5, 0x50,
+    0x98, 0x46, 0x89, 0x82, 0x40,
+};
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    int res;
+    gnutls_datum_t cert, key;
+    gnutls_session_t session;
+    gnutls_certificate_credentials_t xcred;
+
+    int socket_fds[2];
+    res = socketpair(AF_UNIX, SOCK_STREAM, 0, socket_fds);
+    assert(res >= 0);
+    ssize_t send_res = send(socket_fds[1], data, size, 0);
+    assert(send_res == size);
+    res = shutdown(socket_fds[1], SHUT_WR);
+    assert(res == 0);
+
+    res = gnutls_init(&session, GNUTLS_SERVER);
+    assert(res >= 0);
+
+    res = gnutls_certificate_allocate_credentials(&xcred);
+    assert(res >= 0);
+
+    cert.data = (unsigned char *)kCertificateDER;
+    cert.size = sizeof(kCertificateDER);
+    key.data = (unsigned char *)kRSAPrivateKeyDER;
+    key.size = sizeof(kRSAPrivateKeyDER);
+    res = gnutls_certificate_set_x509_key_mem(
+        xcred, &cert, &key, GNUTLS_X509_FMT_DER);
+    assert(res >= 0);
+    res = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+    assert(res >= 0);
+
+    res = gnutls_set_default_priority(session);
+    assert(res >= 0);
+
+    gnutls_transport_set_int(session, socket_fds[0]);
+
+    do {
+        res = gnutls_handshake(session);
+    } while (res < 0 && gnutls_error_is_fatal(res) == 0);
+    if (res >= 0) {
+        while (true) {
+            char buf[16384];
+            res = gnutls_record_recv(session, buf, sizeof(buf));
+            if (res <= 0) {
+                break;
+            }
+        }
+    }
+
+    close(socket_fds[0]);
+    close(socket_fds[1]);
+    gnutls_deinit(session);
+    gnutls_certificate_free_credentials(xcred);
+    return 0;
+}
diff --git a/devel/fuzz/gnutls_x509_parser_fuzzer.cc b/devel/fuzz/gnutls_x509_parser_fuzzer.cc
new file mode 100644
index 0000000000..28dc3397fc
--- /dev/null
+++ b/devel/fuzz/gnutls_x509_parser_fuzzer.cc
@@ -0,0 +1,47 @@
+/*
+# 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.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    gnutls_datum_t raw;
+    gnutls_datum_t out;
+    gnutls_x509_crt_t crt;
+    int ret;
+
+    raw.data = (unsigned char *)data;
+    raw.size = size;
+
+    ret = gnutls_x509_crt_init(&crt);
+    assert(ret >= 0);
+
+    ret = gnutls_x509_crt_import(crt, &raw, GNUTLS_X509_FMT_DER);
+    if (ret >= 0) {
+        ret = gnutls_x509_crt_print(crt, GNUTLS_CRT_PRINT_FULL, &out);
+        assert(ret >= 0);
+        gnutls_free(out.data);
+    }
+
+    gnutls_x509_crt_deinit(crt);
+    return 0;
+}