--- /dev/null
+/*
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL licenses, (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.
+ */
+
+/*
+ * Fuzz ASN.1 parsing for various data structures. Specify which on the
+ * command line:
+ *
+ * asn1 <data structure>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/dh.h>
+#include <openssl/ec.h>
+#include <openssl/ocsp.h>
+#include <openssl/pkcs12.h>
+#include <openssl/rsa.h>
+#include <openssl/ts.h>
+#include <openssl/x509v3.h>
+#include <openssl/cms.h>
+#include "fuzzer.h"
+
+static ASN1_ITEM_EXP *item_type[] = {
+ ASN1_ITEM_ref(ACCESS_DESCRIPTION),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(ASIdentifierChoice),
+ ASN1_ITEM_ref(ASIdentifiers),
+ ASN1_ITEM_ref(ASIdOrRange),
+#endif
+ ASN1_ITEM_ref(ASN1_ANY),
+ ASN1_ITEM_ref(ASN1_BIT_STRING),
+ ASN1_ITEM_ref(ASN1_BMPSTRING),
+ ASN1_ITEM_ref(ASN1_BOOLEAN),
+ ASN1_ITEM_ref(ASN1_ENUMERATED),
+ ASN1_ITEM_ref(ASN1_FBOOLEAN),
+ ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
+ ASN1_ITEM_ref(ASN1_GENERALSTRING),
+ ASN1_ITEM_ref(ASN1_IA5STRING),
+ ASN1_ITEM_ref(ASN1_INTEGER),
+ ASN1_ITEM_ref(ASN1_NULL),
+ ASN1_ITEM_ref(ASN1_OBJECT),
+ ASN1_ITEM_ref(ASN1_OCTET_STRING),
+ ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF),
+ ASN1_ITEM_ref(ASN1_PRINTABLE),
+ ASN1_ITEM_ref(ASN1_PRINTABLESTRING),
+ ASN1_ITEM_ref(ASN1_SEQUENCE),
+ ASN1_ITEM_ref(ASN1_SEQUENCE_ANY),
+ ASN1_ITEM_ref(ASN1_SET_ANY),
+ ASN1_ITEM_ref(ASN1_T61STRING),
+ ASN1_ITEM_ref(ASN1_TBOOLEAN),
+ ASN1_ITEM_ref(ASN1_TIME),
+ ASN1_ITEM_ref(ASN1_UNIVERSALSTRING),
+ ASN1_ITEM_ref(ASN1_UTCTIME),
+ ASN1_ITEM_ref(ASN1_UTF8STRING),
+ ASN1_ITEM_ref(ASN1_VISIBLESTRING),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(ASRange),
+#endif
+ ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
+ ASN1_ITEM_ref(AUTHORITY_KEYID),
+ ASN1_ITEM_ref(BASIC_CONSTRAINTS),
+ ASN1_ITEM_ref(BIGNUM),
+ ASN1_ITEM_ref(CBIGNUM),
+ ASN1_ITEM_ref(CERTIFICATEPOLICIES),
+#ifndef OPENSSL_NO_CMS
+ ASN1_ITEM_ref(CMS_ContentInfo),
+ ASN1_ITEM_ref(CMS_ReceiptRequest),
+ ASN1_ITEM_ref(CRL_DIST_POINTS),
+#endif
+#ifndef OPENSSL_NO_DH
+ ASN1_ITEM_ref(DHparams),
+#endif
+ ASN1_ITEM_ref(DIRECTORYSTRING),
+ ASN1_ITEM_ref(DISPLAYTEXT),
+ ASN1_ITEM_ref(DIST_POINT),
+ ASN1_ITEM_ref(DIST_POINT_NAME),
+#ifndef OPENSSL_NO_EC
+ ASN1_ITEM_ref(ECPARAMETERS),
+ ASN1_ITEM_ref(ECPKPARAMETERS),
+#endif
+ ASN1_ITEM_ref(EDIPARTYNAME),
+ ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
+ ASN1_ITEM_ref(GENERAL_NAME),
+ ASN1_ITEM_ref(GENERAL_NAMES),
+ ASN1_ITEM_ref(GENERAL_SUBTREE),
+#ifndef OPENSSL_NO_RFC3779
+ ASN1_ITEM_ref(IPAddressChoice),
+ ASN1_ITEM_ref(IPAddressFamily),
+ ASN1_ITEM_ref(IPAddressOrRange),
+ ASN1_ITEM_ref(IPAddressRange),
+#endif
+ ASN1_ITEM_ref(ISSUING_DIST_POINT),
+ ASN1_ITEM_ref(LONG),
+ ASN1_ITEM_ref(NAME_CONSTRAINTS),
+ ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE),
+ ASN1_ITEM_ref(NETSCAPE_SPKAC),
+ ASN1_ITEM_ref(NETSCAPE_SPKI),
+ ASN1_ITEM_ref(NOTICEREF),
+#ifndef OPENSSL_NO_OCSP
+ ASN1_ITEM_ref(OCSP_BASICRESP),
+ ASN1_ITEM_ref(OCSP_CERTID),
+ ASN1_ITEM_ref(OCSP_CERTSTATUS),
+ ASN1_ITEM_ref(OCSP_CRLID),
+ ASN1_ITEM_ref(OCSP_ONEREQ),
+ ASN1_ITEM_ref(OCSP_REQINFO),
+ ASN1_ITEM_ref(OCSP_REQUEST),
+ ASN1_ITEM_ref(OCSP_RESPBYTES),
+ ASN1_ITEM_ref(OCSP_RESPDATA),
+ ASN1_ITEM_ref(OCSP_RESPID),
+ ASN1_ITEM_ref(OCSP_RESPONSE),
+ ASN1_ITEM_ref(OCSP_REVOKEDINFO),
+ ASN1_ITEM_ref(OCSP_SERVICELOC),
+ ASN1_ITEM_ref(OCSP_SIGNATURE),
+ ASN1_ITEM_ref(OCSP_SINGLERESP),
+#endif
+ ASN1_ITEM_ref(OTHERNAME),
+ ASN1_ITEM_ref(PBE2PARAM),
+ ASN1_ITEM_ref(PBEPARAM),
+ ASN1_ITEM_ref(PBKDF2PARAM),
+ ASN1_ITEM_ref(PKCS12),
+ ASN1_ITEM_ref(PKCS12_AUTHSAFES),
+ ASN1_ITEM_ref(PKCS12_BAGS),
+ ASN1_ITEM_ref(PKCS12_MAC_DATA),
+ ASN1_ITEM_ref(PKCS12_SAFEBAG),
+ ASN1_ITEM_ref(PKCS12_SAFEBAGS),
+ ASN1_ITEM_ref(PKCS7),
+ ASN1_ITEM_ref(PKCS7_ATTR_SIGN),
+ ASN1_ITEM_ref(PKCS7_ATTR_VERIFY),
+ ASN1_ITEM_ref(PKCS7_DIGEST),
+ ASN1_ITEM_ref(PKCS7_ENC_CONTENT),
+ ASN1_ITEM_ref(PKCS7_ENCRYPT),
+ ASN1_ITEM_ref(PKCS7_ENVELOPE),
+ ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL),
+ ASN1_ITEM_ref(PKCS7_RECIP_INFO),
+ ASN1_ITEM_ref(PKCS7_SIGNED),
+ ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE),
+ ASN1_ITEM_ref(PKCS7_SIGNER_INFO),
+ ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO),
+ ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
+ ASN1_ITEM_ref(POLICY_CONSTRAINTS),
+ ASN1_ITEM_ref(POLICYINFO),
+ ASN1_ITEM_ref(POLICY_MAPPING),
+ ASN1_ITEM_ref(POLICY_MAPPINGS),
+ ASN1_ITEM_ref(POLICYQUALINFO),
+ ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
+ ASN1_ITEM_ref(PROXY_POLICY),
+ ASN1_ITEM_ref(RSA_OAEP_PARAMS),
+ ASN1_ITEM_ref(RSAPrivateKey),
+ ASN1_ITEM_ref(RSA_PSS_PARAMS),
+ ASN1_ITEM_ref(RSAPublicKey),
+ ASN1_ITEM_ref(SXNET),
+ ASN1_ITEM_ref(SXNETID),
+ /*ASN1_ITEM_ref(TS_RESP), want to do this, but type is hidden, however d2i exists... */
+ ASN1_ITEM_ref(USERNOTICE),
+ ASN1_ITEM_ref(X509),
+ ASN1_ITEM_ref(X509_ALGOR),
+ ASN1_ITEM_ref(X509_ALGORS),
+ ASN1_ITEM_ref(X509_ATTRIBUTE),
+ ASN1_ITEM_ref(X509_CERT_AUX),
+ ASN1_ITEM_ref(X509_CINF),
+ ASN1_ITEM_ref(X509_CRL),
+ ASN1_ITEM_ref(X509_CRL_INFO),
+ ASN1_ITEM_ref(X509_EXTENSION),
+ ASN1_ITEM_ref(X509_EXTENSIONS),
+ ASN1_ITEM_ref(X509_NAME),
+ ASN1_ITEM_ref(X509_NAME_ENTRY),
+ ASN1_ITEM_ref(X509_PUBKEY),
+ ASN1_ITEM_ref(X509_REQ),
+ ASN1_ITEM_ref(X509_REQ_INFO),
+ ASN1_ITEM_ref(X509_REVOKED),
+ ASN1_ITEM_ref(X509_SIG),
+ ASN1_ITEM_ref(X509_VAL),
+ ASN1_ITEM_ref(ZLONG),
+ NULL
+};
+
+int FuzzerInitialize(int *argc, char ***argv) {
+ return 1;
+}
+
+int FuzzerTestOneInput(const uint8_t *buf, size_t len) {
+ int n;
+
+ ASN1_PCTX *pctx = ASN1_PCTX_new();
+
+ ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
+ ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
+ ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
+ ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
+ ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
+
+ for (n = 0; item_type[n] != NULL; ++n) {
+ const uint8_t *b = buf;
+ unsigned char *der = NULL;
+ const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);
+ ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);
+
+ if (o != NULL) {
+ BIO *bio = BIO_new(BIO_s_null());
+ ASN1_item_print(bio, o, 4, i, pctx);
+ BIO_free(bio);
+
+ ASN1_item_i2d(o, &der, i);
+ OPENSSL_free(der);
+
+ ASN1_item_free(o, i);
+ }
+ }
+
+ ASN1_PCTX_free(pctx);
+
+ return 0;
+}
projects / cassiopeia.git / blobdiff