Commit fbe2c6b3 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Add Kerberos fix which was in 0.9.8-stable but never committed to HEAD and 

1.0.0. Original fix was on 2007-Mar-09 and had the log message: "Fix kerberos
ciphersuite bugs introduced with PR:1336."
parent fc11f472

ssl/s3_clnt.c

+10 −8
Original line number Diff line number Diff line
@@ -981,7 +981,9 @@ int ssl3_get_server_certificate(SSL *s) 


	if (!ok) return((int)n);



	if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)

	if ((s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) ||

		((s->s3->tmp.new_cipher->algorithms & SSL_aKRB5) && 

		(s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)))

		{

		s->s3->tmp.reuse_message=1;

		return(1);
@@ -2868,13 +2870,6 @@ int ssl3_check_cert_and_algorithm(SSL *s) 
	DH *dh;

#endif



	sc=s->session->sess_cert;

	if (sc == NULL)

		{

		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);

		goto err;

		}



	alg_k=s->s3->tmp.new_cipher->algorithm_mkey;

	alg_a=s->s3->tmp.new_cipher->algorithm_auth;
@@ -2882,6 +2877,13 @@ int ssl3_check_cert_and_algorithm(SSL *s) 
	if ((alg_a & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) || (alg_k & SSL_kPSK))

		return(1);



	sc=s->session->sess_cert;

	if (sc == NULL)

		{

		SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);

		goto err;

		}



#ifndef OPENSSL_NO_RSA

	rsa=s->session->sess_cert->peer_rsa_tmp;

#endif

ssl/s3_srvr.c

+2 −3
Original line number Diff line number Diff line
@@ -2286,7 +2286,7 @@ int ssl3_get_client_key_exchange(SSL *s) 
				SSL_R_DATA_LENGTH_TOO_LONG);

			goto err;

			}

		if (!((p[0] == (s->client_version>>8)) && (p[1] == (s->client_version & 0xff))))

		if (!((pms[0] == (s->client_version>>8)) && (pms[1] == (s->client_version & 0xff))))

		    {

		    /* The premaster secret must contain the same version number as the

		     * ClientHello to detect version rollback attacks (strangely, the
@@ -2296,8 +2296,7 @@ int ssl3_get_client_key_exchange(SSL *s) 
		     * If SSL_OP_TLS_ROLLBACK_BUG is set, tolerate such clients. 

		     * (Perhaps we should have a separate BUG value for the Kerberos cipher)

		     */

		    if (!((s->options & SSL_OP_TLS_ROLLBACK_BUG) &&

			   (p[0] == (s->version>>8)) && (p[1] == (s->version & 0xff))))

		    if (!(s->options & SSL_OP_TLS_ROLLBACK_BUG))

			{

			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,

			       SSL_AD_DECODE_ERROR);