diff options
| author | Emilia Käsper <emilia@openssl.org> | 2014-07-24 22:15:29 +0200 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2014-08-06 20:27:51 +0100 |
| commit | 88ae012c8092852f03c50f6461175271104b4c8a (patch) | |
| tree | 89eef0140a2e1b491b91576731e8813d8191660c /ssl/s3_clnt.c | |
| parent | fc4f4cdb8bf9981904e652abf69b892a45bddacf (diff) | |
Fix DTLS anonymous EC(DH) denial of service
CVE-2014-3510
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Diffstat (limited to 'ssl/s3_clnt.c')
| -rw-r--r-- | ssl/s3_clnt.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ssl/s3_clnt.c b/ssl/s3_clnt.c index 2afb892bff..df05f788e9 100644 --- a/ssl/s3_clnt.c +++ b/ssl/s3_clnt.c @@ -2253,6 +2253,13 @@ int ssl3_send_client_key_exchange(SSL *s) RSA *rsa; unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; + if (s->session->sess_cert == NULL) + { + /* We should always have a server certificate with SSL_kRSA. */ + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + if (s->session->sess_cert->peer_rsa_tmp != NULL) rsa=s->session->sess_cert->peer_rsa_tmp; else |