/* init things to blank */
s->in_handshake++;
- if (!SSL_in_init(s) || SSL_in_before(s))
- SSL_clear(s);
-
- if (s->cert == NULL) {
- SSLerr(SSL_F_SSL3_ACCEPT, SSL_R_NO_CERTIFICATE_SET);
- return (-1);
+ if (!SSL_in_init(s) || SSL_in_before(s)) {
+ if (!SSL_clear(s))
+ return -1;
}
+
#ifndef OPENSSL_NO_HEARTBEATS
/*
* If we're awaiting a HeartbeatResponse, pretend we already got and
{
if (s->state == SSL3_ST_SW_HELLO_REQ_A) {
- ssl_set_handshake_header(s, SSL3_MT_HELLO_REQUEST, 0);
+ if (!ssl_set_handshake_header(s, SSL3_MT_HELLO_REQUEST, 0)) {
+ SSLerr(SSL_F_SSL3_SEND_HELLO_REQUEST, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
s->state = SSL3_ST_SW_HELLO_REQ_B;
}
s->first_packet = 0;
d = p = (unsigned char *)s->init_msg;
+ /*
+ * 2 bytes for client version, SSL3_RANDOM_SIZE bytes for random, 1 byte
+ * for session id length
+ */
+ if (n < 2 + SSL3_RANDOM_SIZE + 1) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
+
/*
* use version from inside client hello, not from record header (may
* differ: see RFC 2246, Appendix E, second paragraph)
unsigned int session_length, cookie_length;
session_length = *(p + SSL3_RANDOM_SIZE);
+
+ if (p + SSL3_RANDOM_SIZE + session_length + 1 >= d + n) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
cookie_length = *(p + SSL3_RANDOM_SIZE + session_length + 1);
if (cookie_length == 0)
/* get the session-id */
j = *(p++);
+ if (p + j > d + n) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
+
s->hit = 0;
/*
* Versions before 0.9.7 always allow clients to resume sessions in
if (SSL_IS_DTLS(s)) {
/* cookie stuff */
+ if (p + 1 > d + n) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
cookie_len = *(p++);
+ if (p + cookie_len > d + n) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
+
/*
* The ClientHello may contain a cookie even if the
* HelloVerify message has not been sent--make sure that it
}
}
+ if (p + 2 > d + n) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_TOO_SHORT);
+ goto f_err;
+ }
n2s(p, i);
- if ((i == 0) && (j != 0)) {
- /* we need a cipher if we are not resuming a session */
+
+ if (i == 0) {
al = SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_NO_CIPHERS_SPECIFIED);
goto f_err;
}
- if ((p + i) >= (d + n)) {
+
+ /* i bytes of cipher data + 1 byte for compression length later */
+ if ((p + i + 1) > (d + n)) {
/* not enough data */
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
- if ((i > 0) && (ssl_bytes_to_cipher_list(s, p, i, &(ciphers))
- == NULL)) {
+ if (ssl_bytes_to_cipher_list(s, p, i, &(ciphers)) == NULL) {
goto err;
}
p += i;
/* If it is a hit, check that the cipher is in the list */
- if ((s->hit) && (i > 0)) {
+ if (s->hit) {
j = 0;
id = s->session->cipher->id;
sk_SSL_CIPHER_free(s->session->ciphers);
s->session->ciphers = ciphers;
if (ciphers == NULL) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_NO_CIPHERS_PASSED);
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
goto f_err;
}
ciphers = NULL;
#endif
/* do the header */
l = (p - d);
- ssl_set_handshake_header(s, SSL3_MT_SERVER_HELLO, l);
+ if (!ssl_set_handshake_header(s, SSL3_MT_SERVER_HELLO, l)) {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
s->state = SSL3_ST_SW_SRVR_HELLO_B;
}
{
if (s->state == SSL3_ST_SW_SRVR_DONE_A) {
- ssl_set_handshake_header(s, SSL3_MT_SERVER_DONE, 0);
+ if (!ssl_set_handshake_header(s, SSL3_MT_SERVER_DONE, 0)) {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_DONE, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
s->state = SSL3_ST_SW_SRVR_DONE_B;
}
}
}
- ssl_set_handshake_header(s, SSL3_MT_SERVER_KEY_EXCHANGE, n);
+ if (!ssl_set_handshake_header(s, SSL3_MT_SERVER_KEY_EXCHANGE, n)) {
+ al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
}
s->state = SSL3_ST_SW_KEY_EXCH_B;
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
#ifndef OPENSSL_NO_EC
- if (encodedPoint != NULL)
- OPENSSL_free(encodedPoint);
+ OPENSSL_free(encodedPoint);
BN_CTX_free(bn_ctx);
#endif
EVP_MD_CTX_cleanup(&md_ctx);
p = ssl_handshake_start(s) + off;
s2n(nl, p);
- ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_REQUEST, n);
+ if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_REQUEST, n)) {
+ SSLerr(SSL_F_SSL3_SEND_CERTIFICATE_REQUEST, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
s->state = SSL3_ST_SW_CERT_REQ_B;
}
* fails. See https://tools.ietf.org/html/rfc5246#section-7.4.7.1
*/
- /*
- * should be RAND_bytes, but we cannot work around a failure.
- */
- if (RAND_pseudo_bytes(rand_premaster_secret,
+ if (RAND_bytes(rand_premaster_secret,
sizeof(rand_premaster_secret)) <= 0)
goto err;
decrypt_len =
sizeof
(rand_premaster_secret));
OPENSSL_cleanse(p, sizeof(rand_premaster_secret));
+ if (s->session->master_key_length < 0) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
} else
#endif
#ifndef OPENSSL_NO_DH
session->master_key,
p, i);
OPENSSL_cleanse(p, i);
+ if (s->session->master_key_length < 0) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
if (dh_clnt)
return 2;
} else
s->
session->master_key,
pms, outl);
+ if (s->session->master_key_length < 0) {
+ al = SSL_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
if (kssl_ctx->client_princ) {
size_t len = strlen(kssl_ctx->client_princ);
p, i);
OPENSSL_cleanse(p, i);
+ if (s->session->master_key_length < 0) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
return (ret);
} else
#endif
t += psk_len;
s2n(psk_len, t);
- if (s->session->psk_identity != NULL)
- OPENSSL_free(s->session->psk_identity);
+ OPENSSL_free(s->session->psk_identity);
s->session->psk_identity = BUF_strdup((char *)p);
if (s->session->psk_identity == NULL) {
SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
goto psk_err;
}
- if (s->session->psk_identity_hint != NULL)
- OPENSSL_free(s->session->psk_identity_hint);
+ OPENSSL_free(s->session->psk_identity_hint);
s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint);
if (s->ctx->psk_identity_hint != NULL &&
s->session->psk_identity_hint == NULL) {
session->master_key,
psk_or_pre_ms,
pre_ms_len);
+ if (s->session->master_key_length < 0) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto psk_err;
+ }
psk_err = 0;
psk_err:
OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms));
SSL_R_BAD_SRP_PARAMETERS);
goto f_err;
}
- if (s->session->srp_username != NULL)
- OPENSSL_free(s->session->srp_username);
+ OPENSSL_free(s->session->srp_username);
s->session->srp_username = BUF_strdup(s->srp_ctx.login);
if (s->session->srp_username == NULL) {
SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
s->
session->master_key,
premaster_secret, 32);
+ if (s->session->master_key_length < 0) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
/* Check if pubkey from client certificate was used */
if (EVP_PKEY_CTX_ctrl
(pkey_ctx, -1, -1, EVP_PKEY_CTRL_PEER_KEY, 2, NULL) > 0)
EVP_PKEY_CTX_free(pkey_ctx);
if (ret)
return ret;
- else
- goto err;
+ goto err;
} else {
al = SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, SSL_R_UNKNOWN_CIPHER_TYPE);
#ifndef OPENSSL_NO_EC
EVP_PKEY_free(clnt_pub_pkey);
EC_POINT_free(clnt_ecpoint);
- if (srvr_ecdh != NULL)
- EC_KEY_free(srvr_ecdh);
+ EC_KEY_free(srvr_ecdh);
BN_CTX_free(bn_ctx);
#endif
return (-1);
EVP_PKEY_free(pkey);
}
- if (s->session->peer != NULL) /* This should not be needed */
- X509_free(s->session->peer);
+ X509_free(s->session->peer);
s->session->peer = sk_X509_shift(sk);
s->session->verify_result = s->verify_result;
goto err;
}
}
- if (s->session->sess_cert->cert_chain != NULL)
- sk_X509_pop_free(s->session->sess_cert->cert_chain, X509_free);
+ sk_X509_pop_free(s->session->sess_cert->cert_chain, X509_free);
s->session->sess_cert->cert_chain = sk;
/*
* Inconsistency alert: cert_chain does *not* include the peer's own
ssl3_send_alert(s, SSL3_AL_FATAL, al);
}
err:
- if (x != NULL)
- X509_free(x);
- if (sk != NULL)
- sk_X509_pop_free(sk, X509_free);
+ X509_free(x);
+ sk_X509_pop_free(sk, X509_free);
return (ret);
}
/* Now write out lengths: p points to end of data written */
/* Total length */
len = p - ssl_handshake_start(s);
- ssl_set_handshake_header(s, SSL3_MT_NEWSESSION_TICKET, len);
/* Skip ticket lifetime hint */
p = ssl_handshake_start(s) + 4;
s2n(len - 6, p);
+ if (!ssl_set_handshake_header(s, SSL3_MT_NEWSESSION_TICKET, len))
+ goto err;
s->state = SSL3_ST_SW_SESSION_TICKET_B;
OPENSSL_free(senc);
}
/* SSL3_ST_SW_SESSION_TICKET_B */
return ssl_do_write(s);
err:
- if (senc)
- OPENSSL_free(senc);
+ OPENSSL_free(senc);
EVP_CIPHER_CTX_cleanup(&ctx);
HMAC_CTX_cleanup(&hctx);
return -1;
projects / openssl.git / blobdiff