2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL licenses, (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.openssl.org/source/license.html
8 * or in the file LICENSE in the source distribution.
12 * Fuzz ASN.1 parsing for various data structures. Specify which on the
15 * asn1 <data structure>
20 #include <openssl/asn1.h>
21 #include <openssl/asn1t.h>
22 #include <openssl/dh.h>
23 #include <openssl/ec.h>
24 #include <openssl/ocsp.h>
25 #include <openssl/pkcs12.h>
26 #include <openssl/rsa.h>
27 #include <openssl/ts.h>
28 #include <openssl/x509v3.h>
29 #include <openssl/cms.h>
30 #include <openssl/err.h>
31 #include <openssl/rand.h>
34 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
35 extern int rand_predictable;
37 #define ENTROPY_NEEDED 32
39 static ASN1_ITEM_EXP *item_type[] = {
40 ASN1_ITEM_ref(ACCESS_DESCRIPTION),
41 #ifndef OPENSSL_NO_RFC3779
42 ASN1_ITEM_ref(ASIdentifierChoice),
43 ASN1_ITEM_ref(ASIdentifiers),
44 ASN1_ITEM_ref(ASIdOrRange),
46 ASN1_ITEM_ref(ASN1_ANY),
47 ASN1_ITEM_ref(ASN1_BIT_STRING),
48 ASN1_ITEM_ref(ASN1_BMPSTRING),
49 ASN1_ITEM_ref(ASN1_BOOLEAN),
50 ASN1_ITEM_ref(ASN1_ENUMERATED),
51 ASN1_ITEM_ref(ASN1_FBOOLEAN),
52 ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
53 ASN1_ITEM_ref(ASN1_GENERALSTRING),
54 ASN1_ITEM_ref(ASN1_IA5STRING),
55 ASN1_ITEM_ref(ASN1_INTEGER),
56 ASN1_ITEM_ref(ASN1_NULL),
57 ASN1_ITEM_ref(ASN1_OBJECT),
58 ASN1_ITEM_ref(ASN1_OCTET_STRING),
59 ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF),
60 ASN1_ITEM_ref(ASN1_PRINTABLE),
61 ASN1_ITEM_ref(ASN1_PRINTABLESTRING),
62 ASN1_ITEM_ref(ASN1_SEQUENCE),
63 ASN1_ITEM_ref(ASN1_SEQUENCE_ANY),
64 ASN1_ITEM_ref(ASN1_SET_ANY),
65 ASN1_ITEM_ref(ASN1_T61STRING),
66 ASN1_ITEM_ref(ASN1_TBOOLEAN),
67 ASN1_ITEM_ref(ASN1_TIME),
68 ASN1_ITEM_ref(ASN1_UNIVERSALSTRING),
69 ASN1_ITEM_ref(ASN1_UTCTIME),
70 ASN1_ITEM_ref(ASN1_UTF8STRING),
71 ASN1_ITEM_ref(ASN1_VISIBLESTRING),
72 #ifndef OPENSSL_NO_RFC3779
73 ASN1_ITEM_ref(ASRange),
75 ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
76 ASN1_ITEM_ref(AUTHORITY_KEYID),
77 ASN1_ITEM_ref(BASIC_CONSTRAINTS),
78 ASN1_ITEM_ref(BIGNUM),
79 ASN1_ITEM_ref(CBIGNUM),
80 ASN1_ITEM_ref(CERTIFICATEPOLICIES),
81 #ifndef OPENSSL_NO_CMS
82 ASN1_ITEM_ref(CMS_ContentInfo),
83 ASN1_ITEM_ref(CMS_ReceiptRequest),
84 ASN1_ITEM_ref(CRL_DIST_POINTS),
87 ASN1_ITEM_ref(DHparams),
89 ASN1_ITEM_ref(DIRECTORYSTRING),
90 ASN1_ITEM_ref(DISPLAYTEXT),
91 ASN1_ITEM_ref(DIST_POINT),
92 ASN1_ITEM_ref(DIST_POINT_NAME),
94 ASN1_ITEM_ref(ECPARAMETERS),
95 ASN1_ITEM_ref(ECPKPARAMETERS),
97 ASN1_ITEM_ref(EDIPARTYNAME),
98 ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
99 ASN1_ITEM_ref(GENERAL_NAME),
100 ASN1_ITEM_ref(GENERAL_NAMES),
101 ASN1_ITEM_ref(GENERAL_SUBTREE),
102 #ifndef OPENSSL_NO_RFC3779
103 ASN1_ITEM_ref(IPAddressChoice),
104 ASN1_ITEM_ref(IPAddressFamily),
105 ASN1_ITEM_ref(IPAddressOrRange),
106 ASN1_ITEM_ref(IPAddressRange),
108 ASN1_ITEM_ref(ISSUING_DIST_POINT),
109 #if OPENSSL_API_COMPAT < 0x10200000L
112 ASN1_ITEM_ref(NAME_CONSTRAINTS),
113 ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE),
114 ASN1_ITEM_ref(NETSCAPE_SPKAC),
115 ASN1_ITEM_ref(NETSCAPE_SPKI),
116 ASN1_ITEM_ref(NOTICEREF),
117 #ifndef OPENSSL_NO_OCSP
118 ASN1_ITEM_ref(OCSP_BASICRESP),
119 ASN1_ITEM_ref(OCSP_CERTID),
120 ASN1_ITEM_ref(OCSP_CERTSTATUS),
121 ASN1_ITEM_ref(OCSP_CRLID),
122 ASN1_ITEM_ref(OCSP_ONEREQ),
123 ASN1_ITEM_ref(OCSP_REQINFO),
124 ASN1_ITEM_ref(OCSP_REQUEST),
125 ASN1_ITEM_ref(OCSP_RESPBYTES),
126 ASN1_ITEM_ref(OCSP_RESPDATA),
127 ASN1_ITEM_ref(OCSP_RESPID),
128 ASN1_ITEM_ref(OCSP_RESPONSE),
129 ASN1_ITEM_ref(OCSP_REVOKEDINFO),
130 ASN1_ITEM_ref(OCSP_SERVICELOC),
131 ASN1_ITEM_ref(OCSP_SIGNATURE),
132 ASN1_ITEM_ref(OCSP_SINGLERESP),
134 ASN1_ITEM_ref(OTHERNAME),
135 ASN1_ITEM_ref(PBE2PARAM),
136 ASN1_ITEM_ref(PBEPARAM),
137 ASN1_ITEM_ref(PBKDF2PARAM),
138 ASN1_ITEM_ref(PKCS12),
139 ASN1_ITEM_ref(PKCS12_AUTHSAFES),
140 ASN1_ITEM_ref(PKCS12_BAGS),
141 ASN1_ITEM_ref(PKCS12_MAC_DATA),
142 ASN1_ITEM_ref(PKCS12_SAFEBAG),
143 ASN1_ITEM_ref(PKCS12_SAFEBAGS),
144 ASN1_ITEM_ref(PKCS7),
145 ASN1_ITEM_ref(PKCS7_ATTR_SIGN),
146 ASN1_ITEM_ref(PKCS7_ATTR_VERIFY),
147 ASN1_ITEM_ref(PKCS7_DIGEST),
148 ASN1_ITEM_ref(PKCS7_ENC_CONTENT),
149 ASN1_ITEM_ref(PKCS7_ENCRYPT),
150 ASN1_ITEM_ref(PKCS7_ENVELOPE),
151 ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL),
152 ASN1_ITEM_ref(PKCS7_RECIP_INFO),
153 ASN1_ITEM_ref(PKCS7_SIGNED),
154 ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE),
155 ASN1_ITEM_ref(PKCS7_SIGNER_INFO),
156 ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO),
157 ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
158 ASN1_ITEM_ref(POLICY_CONSTRAINTS),
159 ASN1_ITEM_ref(POLICYINFO),
160 ASN1_ITEM_ref(POLICY_MAPPING),
161 ASN1_ITEM_ref(POLICY_MAPPINGS),
162 ASN1_ITEM_ref(POLICYQUALINFO),
163 ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
164 ASN1_ITEM_ref(PROXY_POLICY),
165 ASN1_ITEM_ref(RSA_OAEP_PARAMS),
166 ASN1_ITEM_ref(RSAPrivateKey),
167 ASN1_ITEM_ref(RSA_PSS_PARAMS),
168 ASN1_ITEM_ref(RSAPublicKey),
169 ASN1_ITEM_ref(SXNET),
170 ASN1_ITEM_ref(SXNETID),
171 /*ASN1_ITEM_ref(TS_RESP), want to do this, but type is hidden, however d2i exists... */
172 ASN1_ITEM_ref(USERNOTICE),
174 ASN1_ITEM_ref(X509_ALGOR),
175 ASN1_ITEM_ref(X509_ALGORS),
176 ASN1_ITEM_ref(X509_ATTRIBUTE),
177 ASN1_ITEM_ref(X509_CERT_AUX),
178 ASN1_ITEM_ref(X509_CINF),
179 ASN1_ITEM_ref(X509_CRL),
180 ASN1_ITEM_ref(X509_CRL_INFO),
181 ASN1_ITEM_ref(X509_EXTENSION),
182 ASN1_ITEM_ref(X509_EXTENSIONS),
183 ASN1_ITEM_ref(X509_NAME),
184 ASN1_ITEM_ref(X509_NAME_ENTRY),
185 ASN1_ITEM_ref(X509_PUBKEY),
186 ASN1_ITEM_ref(X509_REQ),
187 ASN1_ITEM_ref(X509_REQ_INFO),
188 ASN1_ITEM_ref(X509_REVOKED),
189 ASN1_ITEM_ref(X509_SIG),
190 ASN1_ITEM_ref(X509_VAL),
191 #if OPENSSL_API_COMPAT < 0x10200000L
192 ASN1_ITEM_ref(ZLONG),
194 ASN1_ITEM_ref(INT32),
195 ASN1_ITEM_ref(ZINT32),
196 ASN1_ITEM_ref(UINT32),
197 ASN1_ITEM_ref(ZUINT32),
198 ASN1_ITEM_ref(INT64),
199 ASN1_ITEM_ref(ZINT64),
200 ASN1_ITEM_ref(UINT64),
201 ASN1_ITEM_ref(ZUINT64),
205 static ASN1_PCTX *pctx;
207 int FuzzerInitialize(int *argc, char ***argv)
209 pctx = ASN1_PCTX_new();
210 ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
211 ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
212 ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
213 ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
214 ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
216 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
218 CRYPTO_free_ex_index(0, -1);
219 RAND_add("", 1, ENTROPY_NEEDED);
222 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
223 rand_predictable = 1;
229 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
234 for (n = 0; item_type[n] != NULL; ++n) {
235 const uint8_t *b = buf;
236 unsigned char *der = NULL;
237 const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);
238 ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);
241 BIO *bio = BIO_new(BIO_s_null());
242 ASN1_item_print(bio, o, 4, i, pctx);
245 ASN1_item_i2d(o, &der, i);
248 ASN1_item_free(o, i);
257 void FuzzerCleanup(void)
259 ASN1_PCTX_free(pctx);