/* * Copyright (C) 2019 Red Hat, Inc. * * Author: Nikos Mavrogiannopoulos * * This file is part of GnuTLS. * * The GnuTLS is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see * */ #include #include #include #include #include #include #include "fuzzer.h" unsigned char _ca_der[] = { 0x30, 0x82, 0x05, 0xe2, 0x30, 0x82, 0x04, 0xca, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x10, 0x27, 0x53, 0xf8, 0x06, 0xfe, 0x91, 0x37, 0x32, 0x2f, 0x5b, 0x40, 0x9f, 0x1c, 0x31, 0x87, 0x5c, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, 0x81, 0xca, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x17, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x0e, 0x56, 0x65, 0x72, 0x69, 0x53, 0x69, 0x67, 0x6e, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x1f, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x16, 0x56, 0x65, 0x72, 0x69, 0x53, 0x69, 0x67, 0x6e, 0x20, 0x54, 0x72, 0x75, 0x73, 0x74, 0x20, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x31, 0x3a, 0x30, 0x38, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x31, 0x28, 0x63, 0x29, 0x20, 0x32, 0x30, 0x30, 0x36, 0x20, 0x56, 0x65, 0x72, 0x69, 0x53, 0x69, 0x67, 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0x85, 0x74, 0x0a, 0x1d, 0x2e, 0x2a, 0x52, 0x91, 0x18, 0x20, 0xd7, 0xc9, 0xb2, 0x97, 0x84, 0x8f, 0x16, 0x2c, 0x32, 0xca, 0x18, 0x12, 0xaa, 0xc5, 0x20, 0x59, 0xca, 0xfb, 0x6d, 0x37, 0x32, 0xe3, 0xc5, 0xa3, 0x84 }; unsigned int _ca_der_len = 1510; static time_t mytime(time_t * t) { time_t then = 1553835274; if (t) *t = then; return then; } int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { gnutls_datum_t raw; gnutls_datum_t ca; gnutls_x509_crt_t crt, ca_crt; int ret; unsigned status = 0; gnutls_global_set_time_function(mytime); raw.data = (unsigned char *)data; raw.size = size; ca.data = _ca_der; ca.size = _ca_der_len; ret = gnutls_x509_crt_init(&ca_crt); assert(ret >= 0); ret = gnutls_x509_crt_init(&crt); assert(ret >= 0); ret = gnutls_x509_crt_import(ca_crt, &ca, GNUTLS_X509_FMT_DER); if (ret < 0) goto fail; ret = gnutls_x509_crt_import(crt, &raw, GNUTLS_X509_FMT_DER); if (ret < 0) goto fail; ret = gnutls_x509_crt_list_verify(&crt, 1, &ca_crt, 1, NULL, 0, GNUTLS_VERIFY_ALLOW_UNSORTED_CHAIN|GNUTLS_VERIFY_ALLOW_BROKEN| GNUTLS_VERIFY_DISABLE_TRUSTED_TIME_CHECKS, &status); assert(ret < 0 || status != 0); fail: gnutls_x509_crt_deinit(crt); gnutls_x509_crt_deinit(ca_crt); return 0; }