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Process multiple ocsp responses

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This commit is contained in:
Tesfa Mael
2020-10-14 01:10:07 -07:00
parent 232028d03b
commit 5ac3e7d542
1 changed files with 106 additions and 100 deletions
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34
wolfcrypt/src/asn.c
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@@ -8885,6 +8885,7 @@ static int DecodeCertExtensions(DecodedCert* cert)
case OCSP_NOCHECK_OID: case OCSP_NOCHECK_OID:
VERIFY_AND_SET_OID(cert->ocspNoCheckSet); VERIFY_AND_SET_OID(cert->ocspNoCheckSet);
ret = GetASNNull(input, &idx, sz); ret = GetASNNull(input, &idx, sz);
length = 0; /* idx is already incremented, reset length to 0 */
if (ret != 0) if (ret != 0)
return ASN_PARSE_E; return ASN_PARSE_E;
break; break;
@@ -16546,9 +16547,12 @@ static int DecodeSingleResponse(byte* source,
prevIndex = idx; prevIndex = idx;
/* When making a request, we only request one status on one certificate /* wolfSSL only requests one status for one certificate at a time but
* at a time. There should only be one SingleResponse */ some OCSP responders can reply with multiple SingleResponse items.
Expect to handle one SingleResponse. Otherwise, we can process the
responses but only the last entry in the list is verified. */
while ((idx-prevIndex) < (word32)wrapperSz) {
/* Wrapper around the Single Response */ /* Wrapper around the Single Response */
if (GetSequence(source, &idx, &length, size) < 0) if (GetSequence(source, &idx, &length, size) < 0)
return ASN_PARSE_E; return ASN_PARSE_E;
@@ -16600,7 +16604,7 @@ static int DecodeSingleResponse(byte* source,
return ASN_PARSE_E; return ASN_PARSE_E;
} }
#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) #if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
cs->thisDateAsn = source + idx; cs->thisDateAsn = source + idx;
localIdx = 0; localIdx = 0;
if (GetDateInfo(cs->thisDateAsn, &localIdx, NULL, if (GetDateInfo(cs->thisDateAsn, &localIdx, NULL,
@@ -16610,17 +16614,18 @@ static int DecodeSingleResponse(byte* source,
XMEMCPY(cs->thisDateParsed.data, XMEMCPY(cs->thisDateParsed.data,
cs->thisDateAsn + localIdx - cs->thisDateParsed.length, cs->thisDateAsn + localIdx - cs->thisDateParsed.length,
cs->thisDateParsed.length); cs->thisDateParsed.length);
#endif #endif
if (GetBasicDate(source, &idx, cs->thisDate, if (GetBasicDate(source, &idx, cs->thisDate,
&cs->thisDateFormat, size) < 0) &cs->thisDateFormat, size) < 0)
return ASN_PARSE_E; return ASN_PARSE_E;
#ifndef NO_ASN_TIME #ifndef NO_ASN_TIME
#ifndef WOLFSSL_NO_OCSP_DATE_CHECK #ifndef WOLFSSL_NO_OCSP_DATE_CHECK
if (!XVALIDATE_DATE(cs->thisDate, cs->thisDateFormat, BEFORE)) if (!XVALIDATE_DATE(cs->thisDate, cs->thisDateFormat, BEFORE))
return ASN_BEFORE_DATE_E; return ASN_BEFORE_DATE_E;
#endif #endif
#endif #endif
/* The following items are optional. Only check for them if there is more /* The following items are optional. Only check for them if there is more
* unprocessed data in the singleResponse wrapper. */ * unprocessed data in the singleResponse wrapper. */
@@ -16633,7 +16638,7 @@ static int DecodeSingleResponse(byte* source,
idx++; idx++;
if (GetLength(source, &idx, &length, size) < 0) if (GetLength(source, &idx, &length, size) < 0)
return ASN_PARSE_E; return ASN_PARSE_E;
#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) #if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
cs->nextDateAsn = source + idx; cs->nextDateAsn = source + idx;
localIdx = 0; localIdx = 0;
if (GetDateInfo(cs->nextDateAsn, &localIdx, NULL, if (GetDateInfo(cs->nextDateAsn, &localIdx, NULL,
@@ -16643,18 +16648,19 @@ static int DecodeSingleResponse(byte* source,
XMEMCPY(cs->nextDateParsed.data, XMEMCPY(cs->nextDateParsed.data,
cs->nextDateAsn + localIdx - cs->nextDateParsed.length, cs->nextDateAsn + localIdx - cs->nextDateParsed.length,
cs->nextDateParsed.length); cs->nextDateParsed.length);
#endif #endif
if (GetBasicDate(source, &idx, cs->nextDate, if (GetBasicDate(source, &idx, cs->nextDate,
&cs->nextDateFormat, size) < 0) &cs->nextDateFormat, size) < 0)
return ASN_PARSE_E; return ASN_PARSE_E;
#ifndef NO_ASN_TIME #ifndef NO_ASN_TIME
#ifndef WOLFSSL_NO_OCSP_DATE_CHECK #ifndef WOLFSSL_NO_OCSP_DATE_CHECK
if (!XVALIDATE_DATE(cs->nextDate, cs->nextDateFormat, AFTER)) if (!XVALIDATE_DATE(cs->nextDate, cs->nextDateFormat, AFTER))
return ASN_AFTER_DATE_E; return ASN_AFTER_DATE_E;
#endif #endif
#endif #endif
} }
} /* while, process multiple SingleResponse items */
localIdx = idx; localIdx = idx;
if (((int)(idx - prevIndex) < wrapperSz) && if (((int)(idx - prevIndex) < wrapperSz) &&