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Merge pull request #3748 from JacobBarthelmeh/Testing 

always check index into certs
pull/3756/head
Sean Parkinson 2021-02-15 08:20:28 +10:00 committed by GitHub
parent fc005f941c 0938a0055d
commit 505514415d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 14 deletions
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24
src/internal.c
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@ -10857,21 +10857,12 @@ int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx,
#endif
/* allocate buffer for certs */
#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
args->certs = (buffer*)XMALLOC(sizeof(buffer) *
(ssl->verifyDepth + 1), ssl->heap, DYNAMIC_TYPE_DER);
if (args->certs == NULL) {
ERROR_OUT(MEMORY_E, exit_ppc);
}
XMEMSET(args->certs, 0, sizeof(buffer) * (ssl->verifyDepth + 1));
#else
args->certs = (buffer*)XMALLOC(sizeof(buffer) * MAX_CHAIN_DEPTH,
ssl->heap, DYNAMIC_TYPE_DER);
if (args->certs == NULL) {
ERROR_OUT(MEMORY_E, exit_ppc);
}
XMEMSET(args->certs, 0, sizeof(buffer) * MAX_CHAIN_DEPTH);
#endif /* OPENSSL_EXTRA */
/* Certificate List */
if ((args->idx - args->begin) + OPAQUE24_LEN > totalSz) {
@ -10892,7 +10883,16 @@ int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx,
while (listSz) {
word32 certSz;
#if !defined(OPENSSL_EXTRA) && !defined(OPENSS_EXTRA_X509_SMALL)
#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
if (args->totalCerts >= MAX_CHAIN_DEPTH) {
ssl->peerVerifyRet = X509_V_ERR_CERT_CHAIN_TOO_LONG;
ret = MAX_CHAIN_ERROR;
WOLFSSL_MSG("Too many certs for MAX_CHAIN_DEPTH");
break; /* break out to avoid reading more certs then buffer
* can hold */
}
#else
if (args->totalCerts >= ssl->verifyDepth ||
args->totalCerts >= MAX_CHAIN_DEPTH) {
ERROR_OUT(MAX_CHAIN_ERROR, exit_ppc);
@ -11131,7 +11131,7 @@ int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx,
(void)doCrlLookup;
}
#endif /* HAVE_OCSP || HAVE_CRL */
#ifdef OPENSSL_EXTRA
#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)
if (ret == 0 &&
/* extend the limit "+1" until reaching
* an ultimately trusted issuer.*/
@ -11139,7 +11139,7 @@ int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx,
ssl->peerVerifyRet = X509_V_ERR_CERT_CHAIN_TOO_LONG;
ret = MAX_CHAIN_ERROR;
}
#endif
#endif
/* Do verify callback */
ret = DoVerifyCallback(ssl->ctx->cm, ssl, ret, args);
if (ssl->options.verifyNone &&