2 * Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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/ess.h>
31 #include <openssl/err.h>
32 #include <openssl/rand.h>
33 #include <openssl/bio.h>
34 #include <openssl/evp.h>
35 #include <openssl/ssl.h>
36 #include <internal/nelem.h>
41 static ASN1_ITEM_EXP
*item_type
[] = {
42 ASN1_ITEM_ref(ACCESS_DESCRIPTION
),
43 #ifndef OPENSSL_NO_RFC3779
44 ASN1_ITEM_ref(ASIdentifierChoice
),
45 ASN1_ITEM_ref(ASIdentifiers
),
46 ASN1_ITEM_ref(ASIdOrRange
),
48 ASN1_ITEM_ref(ASN1_ANY
),
49 ASN1_ITEM_ref(ASN1_BIT_STRING
),
50 ASN1_ITEM_ref(ASN1_BMPSTRING
),
51 ASN1_ITEM_ref(ASN1_BOOLEAN
),
52 ASN1_ITEM_ref(ASN1_ENUMERATED
),
53 ASN1_ITEM_ref(ASN1_FBOOLEAN
),
54 ASN1_ITEM_ref(ASN1_GENERALIZEDTIME
),
55 ASN1_ITEM_ref(ASN1_GENERALSTRING
),
56 ASN1_ITEM_ref(ASN1_IA5STRING
),
57 ASN1_ITEM_ref(ASN1_INTEGER
),
58 ASN1_ITEM_ref(ASN1_NULL
),
59 ASN1_ITEM_ref(ASN1_OBJECT
),
60 ASN1_ITEM_ref(ASN1_OCTET_STRING
),
61 ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF
),
62 ASN1_ITEM_ref(ASN1_PRINTABLE
),
63 ASN1_ITEM_ref(ASN1_PRINTABLESTRING
),
64 ASN1_ITEM_ref(ASN1_SEQUENCE
),
65 ASN1_ITEM_ref(ASN1_SEQUENCE_ANY
),
66 ASN1_ITEM_ref(ASN1_SET_ANY
),
67 ASN1_ITEM_ref(ASN1_T61STRING
),
68 ASN1_ITEM_ref(ASN1_TBOOLEAN
),
69 ASN1_ITEM_ref(ASN1_TIME
),
70 ASN1_ITEM_ref(ASN1_UNIVERSALSTRING
),
71 ASN1_ITEM_ref(ASN1_UTCTIME
),
72 ASN1_ITEM_ref(ASN1_UTF8STRING
),
73 ASN1_ITEM_ref(ASN1_VISIBLESTRING
),
74 #ifndef OPENSSL_NO_RFC3779
75 ASN1_ITEM_ref(ASRange
),
77 ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS
),
78 ASN1_ITEM_ref(AUTHORITY_KEYID
),
79 ASN1_ITEM_ref(BASIC_CONSTRAINTS
),
80 ASN1_ITEM_ref(BIGNUM
),
81 ASN1_ITEM_ref(CBIGNUM
),
82 ASN1_ITEM_ref(CERTIFICATEPOLICIES
),
83 #ifndef OPENSSL_NO_CMS
84 ASN1_ITEM_ref(CMS_ContentInfo
),
85 ASN1_ITEM_ref(CMS_ReceiptRequest
),
86 ASN1_ITEM_ref(CRL_DIST_POINTS
),
89 ASN1_ITEM_ref(DHparams
),
91 ASN1_ITEM_ref(DIRECTORYSTRING
),
92 ASN1_ITEM_ref(DISPLAYTEXT
),
93 ASN1_ITEM_ref(DIST_POINT
),
94 ASN1_ITEM_ref(DIST_POINT_NAME
),
96 ASN1_ITEM_ref(ECPARAMETERS
),
97 ASN1_ITEM_ref(ECPKPARAMETERS
),
99 ASN1_ITEM_ref(EDIPARTYNAME
),
100 ASN1_ITEM_ref(EXTENDED_KEY_USAGE
),
101 ASN1_ITEM_ref(GENERAL_NAME
),
102 ASN1_ITEM_ref(GENERAL_NAMES
),
103 ASN1_ITEM_ref(GENERAL_SUBTREE
),
104 #ifndef OPENSSL_NO_RFC3779
105 ASN1_ITEM_ref(IPAddressChoice
),
106 ASN1_ITEM_ref(IPAddressFamily
),
107 ASN1_ITEM_ref(IPAddressOrRange
),
108 ASN1_ITEM_ref(IPAddressRange
),
110 ASN1_ITEM_ref(ISSUING_DIST_POINT
),
111 #ifndef OPENSSL_NO_DEPRECATED_3_0
114 ASN1_ITEM_ref(NAME_CONSTRAINTS
),
115 ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE
),
116 ASN1_ITEM_ref(NETSCAPE_SPKAC
),
117 ASN1_ITEM_ref(NETSCAPE_SPKI
),
118 ASN1_ITEM_ref(NOTICEREF
),
119 #ifndef OPENSSL_NO_OCSP
120 ASN1_ITEM_ref(OCSP_BASICRESP
),
121 ASN1_ITEM_ref(OCSP_CERTID
),
122 ASN1_ITEM_ref(OCSP_CERTSTATUS
),
123 ASN1_ITEM_ref(OCSP_CRLID
),
124 ASN1_ITEM_ref(OCSP_ONEREQ
),
125 ASN1_ITEM_ref(OCSP_REQINFO
),
126 ASN1_ITEM_ref(OCSP_REQUEST
),
127 ASN1_ITEM_ref(OCSP_RESPBYTES
),
128 ASN1_ITEM_ref(OCSP_RESPDATA
),
129 ASN1_ITEM_ref(OCSP_RESPID
),
130 ASN1_ITEM_ref(OCSP_RESPONSE
),
131 ASN1_ITEM_ref(OCSP_REVOKEDINFO
),
132 ASN1_ITEM_ref(OCSP_SERVICELOC
),
133 ASN1_ITEM_ref(OCSP_SIGNATURE
),
134 ASN1_ITEM_ref(OCSP_SINGLERESP
),
136 ASN1_ITEM_ref(OTHERNAME
),
137 ASN1_ITEM_ref(PBE2PARAM
),
138 ASN1_ITEM_ref(PBEPARAM
),
139 ASN1_ITEM_ref(PBKDF2PARAM
),
140 ASN1_ITEM_ref(PKCS12
),
141 ASN1_ITEM_ref(PKCS12_AUTHSAFES
),
142 ASN1_ITEM_ref(PKCS12_BAGS
),
143 ASN1_ITEM_ref(PKCS12_MAC_DATA
),
144 ASN1_ITEM_ref(PKCS12_SAFEBAG
),
145 ASN1_ITEM_ref(PKCS12_SAFEBAGS
),
146 ASN1_ITEM_ref(PKCS7
),
147 ASN1_ITEM_ref(PKCS7_ATTR_SIGN
),
148 ASN1_ITEM_ref(PKCS7_ATTR_VERIFY
),
149 ASN1_ITEM_ref(PKCS7_DIGEST
),
150 ASN1_ITEM_ref(PKCS7_ENC_CONTENT
),
151 ASN1_ITEM_ref(PKCS7_ENCRYPT
),
152 ASN1_ITEM_ref(PKCS7_ENVELOPE
),
153 ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL
),
154 ASN1_ITEM_ref(PKCS7_RECIP_INFO
),
155 ASN1_ITEM_ref(PKCS7_SIGNED
),
156 ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE
),
157 ASN1_ITEM_ref(PKCS7_SIGNER_INFO
),
158 ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO
),
159 ASN1_ITEM_ref(PKEY_USAGE_PERIOD
),
160 ASN1_ITEM_ref(POLICY_CONSTRAINTS
),
161 ASN1_ITEM_ref(POLICYINFO
),
162 ASN1_ITEM_ref(POLICY_MAPPING
),
163 ASN1_ITEM_ref(POLICY_MAPPINGS
),
164 ASN1_ITEM_ref(POLICYQUALINFO
),
165 ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION
),
166 ASN1_ITEM_ref(PROXY_POLICY
),
167 ASN1_ITEM_ref(RSA_OAEP_PARAMS
),
168 ASN1_ITEM_ref(RSAPrivateKey
),
169 ASN1_ITEM_ref(RSA_PSS_PARAMS
),
170 ASN1_ITEM_ref(RSAPublicKey
),
171 ASN1_ITEM_ref(SXNET
),
172 ASN1_ITEM_ref(SXNETID
),
173 ASN1_ITEM_ref(USERNOTICE
),
175 ASN1_ITEM_ref(X509_ALGOR
),
176 ASN1_ITEM_ref(X509_ALGORS
),
177 ASN1_ITEM_ref(X509_ATTRIBUTE
),
178 ASN1_ITEM_ref(X509_CERT_AUX
),
179 ASN1_ITEM_ref(X509_CINF
),
180 ASN1_ITEM_ref(X509_CRL
),
181 ASN1_ITEM_ref(X509_CRL_INFO
),
182 ASN1_ITEM_ref(X509_EXTENSION
),
183 ASN1_ITEM_ref(X509_EXTENSIONS
),
184 ASN1_ITEM_ref(X509_NAME
),
185 ASN1_ITEM_ref(X509_NAME_ENTRY
),
186 ASN1_ITEM_ref(X509_PUBKEY
),
187 ASN1_ITEM_ref(X509_REQ
),
188 ASN1_ITEM_ref(X509_REQ_INFO
),
189 ASN1_ITEM_ref(X509_REVOKED
),
190 ASN1_ITEM_ref(X509_SIG
),
191 ASN1_ITEM_ref(X509_VAL
),
192 #ifndef OPENSSL_NO_DEPRECATED_3_0
193 ASN1_ITEM_ref(ZLONG
),
195 ASN1_ITEM_ref(INT32
),
196 ASN1_ITEM_ref(ZINT32
),
197 ASN1_ITEM_ref(UINT32
),
198 ASN1_ITEM_ref(ZUINT32
),
199 ASN1_ITEM_ref(INT64
),
200 ASN1_ITEM_ref(ZINT64
),
201 ASN1_ITEM_ref(UINT64
),
202 ASN1_ITEM_ref(ZUINT64
),
206 static ASN1_PCTX
*pctx
;
208 #define DO_TEST(TYPE, D2I, I2D, PRINT) { \
209 const unsigned char *p = buf; \
210 unsigned char *der = NULL; \
211 TYPE *type = D2I(NULL, &p, len); \
213 if (type != NULL) { \
215 BIO *bio = BIO_new(BIO_s_null()); \
219 len2 = I2D(type, &der); \
222 TYPE ## _free(type); \
226 #define DO_TEST_PRINT_OFFSET(TYPE, D2I, I2D, PRINT) { \
227 const unsigned char *p = buf; \
228 unsigned char *der = NULL; \
229 TYPE *type = D2I(NULL, &p, len); \
231 if (type != NULL) { \
232 BIO *bio = BIO_new(BIO_s_null()); \
234 PRINT(bio, type, 0); \
238 TYPE ## _free(type); \
242 #define DO_TEST_PRINT_PCTX(TYPE, D2I, I2D, PRINT) { \
243 const unsigned char *p = buf; \
244 unsigned char *der = NULL; \
245 TYPE *type = D2I(NULL, &p, len); \
247 if (type != NULL) { \
248 BIO *bio = BIO_new(BIO_s_null()); \
250 PRINT(bio, type, 0, pctx); \
254 TYPE ## _free(type); \
259 #define DO_TEST_NO_PRINT(TYPE, D2I, I2D) { \
260 const unsigned char *p = buf; \
261 unsigned char *der = NULL; \
262 TYPE *type = D2I(NULL, &p, len); \
264 if (type != NULL) { \
265 BIO *bio = BIO_new(BIO_s_null()); \
270 TYPE ## _free(type); \
275 int FuzzerInitialize(int *argc
, char ***argv
)
277 pctx
= ASN1_PCTX_new();
278 ASN1_PCTX_set_flags(pctx
, ASN1_PCTX_FLAGS_SHOW_ABSENT
|
279 ASN1_PCTX_FLAGS_SHOW_SEQUENCE
| ASN1_PCTX_FLAGS_SHOW_SSOF
|
280 ASN1_PCTX_FLAGS_SHOW_TYPE
| ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME
);
281 ASN1_PCTX_set_str_flags(pctx
, ASN1_STRFLGS_UTF8_CONVERT
|
282 ASN1_STRFLGS_SHOW_TYPE
| ASN1_STRFLGS_DUMP_ALL
);
284 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS
, NULL
);
285 OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
);
287 CRYPTO_free_ex_index(0, -1);
293 int FuzzerTestOneInput(const uint8_t *buf
, size_t len
)
298 for (n
= 0; item_type
[n
] != NULL
; ++n
) {
299 const uint8_t *b
= buf
;
300 unsigned char *der
= NULL
;
301 const ASN1_ITEM
*i
= ASN1_ITEM_ptr(item_type
[n
]);
302 ASN1_VALUE
*o
= ASN1_item_d2i(NULL
, &b
, len
, i
);
305 BIO
*bio
= BIO_new(BIO_s_null());
307 ASN1_item_print(bio
, o
, 4, i
, pctx
);
309 ASN1_item_i2d(o
, &der
, i
);
311 ASN1_item_free(o
, i
);
315 #ifndef OPENSSL_NO_TS
316 DO_TEST(TS_REQ
, d2i_TS_REQ
, i2d_TS_REQ
, TS_REQ_print_bio
);
317 DO_TEST(TS_MSG_IMPRINT
, d2i_TS_MSG_IMPRINT
, i2d_TS_MSG_IMPRINT
, TS_MSG_IMPRINT_print_bio
);
318 DO_TEST(TS_RESP
, d2i_TS_RESP
, i2d_TS_RESP
, TS_RESP_print_bio
);
319 DO_TEST(TS_STATUS_INFO
, d2i_TS_STATUS_INFO
, i2d_TS_STATUS_INFO
, TS_STATUS_INFO_print_bio
);
320 DO_TEST(TS_TST_INFO
, d2i_TS_TST_INFO
, i2d_TS_TST_INFO
, TS_TST_INFO_print_bio
);
321 DO_TEST_NO_PRINT(TS_ACCURACY
, d2i_TS_ACCURACY
, i2d_TS_ACCURACY
);
323 DO_TEST_NO_PRINT(ESS_ISSUER_SERIAL
, d2i_ESS_ISSUER_SERIAL
, i2d_ESS_ISSUER_SERIAL
);
324 DO_TEST_NO_PRINT(ESS_CERT_ID
, d2i_ESS_CERT_ID
, i2d_ESS_CERT_ID
);
325 DO_TEST_NO_PRINT(ESS_SIGNING_CERT
, d2i_ESS_SIGNING_CERT
, i2d_ESS_SIGNING_CERT
);
326 DO_TEST_NO_PRINT(ESS_CERT_ID_V2
, d2i_ESS_CERT_ID_V2
, i2d_ESS_CERT_ID_V2
);
327 DO_TEST_NO_PRINT(ESS_SIGNING_CERT_V2
, d2i_ESS_SIGNING_CERT_V2
, i2d_ESS_SIGNING_CERT_V2
);
328 #ifndef OPENSSL_NO_DH
329 DO_TEST(DH
, d2i_DHparams
, i2d_DHparams
, DHparams_print
);
330 DO_TEST(DH
, d2i_DHxparams
, i2d_DHxparams
, DHparams_print
);
332 #ifndef OPENSSL_NO_DSA
333 DO_TEST_NO_PRINT(DSA_SIG
, d2i_DSA_SIG
, i2d_DSA_SIG
);
334 DO_TEST_PRINT_OFFSET(DSA
, d2i_DSAPrivateKey
, i2d_DSAPrivateKey
, DSA_print
);
335 DO_TEST_PRINT_OFFSET(DSA
, d2i_DSAPublicKey
, i2d_DSAPublicKey
, DSA_print
);
336 DO_TEST(DSA
, d2i_DSAparams
, i2d_DSAparams
, DSAparams_print
);
338 DO_TEST_PRINT_OFFSET(RSA
, d2i_RSAPublicKey
, i2d_RSAPublicKey
, RSA_print
);
339 #ifndef OPENSSL_NO_EC
340 DO_TEST_PRINT_OFFSET(EC_GROUP
, d2i_ECPKParameters
, i2d_ECPKParameters
, ECPKParameters_print
);
341 DO_TEST_PRINT_OFFSET(EC_KEY
, d2i_ECPrivateKey
, i2d_ECPrivateKey
, EC_KEY_print
);
342 DO_TEST(EC_KEY
, d2i_ECParameters
, i2d_ECParameters
, ECParameters_print
);
343 DO_TEST_NO_PRINT(ECDSA_SIG
, d2i_ECDSA_SIG
, i2d_ECDSA_SIG
);
345 DO_TEST_PRINT_PCTX(EVP_PKEY
, d2i_AutoPrivateKey
, i2d_PrivateKey
, EVP_PKEY_print_private
);
346 DO_TEST(SSL_SESSION
, d2i_SSL_SESSION
, i2d_SSL_SESSION
, SSL_SESSION_print
);
353 void FuzzerCleanup(void)
355 ASN1_PCTX_free(pctx
);