diff options
| author | Emilia Käsper <emilia@openssl.org> | 2014-07-24 22:15:29 +0200 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2014-08-06 20:36:40 +0100 |
| commit | 17160033765480453be0a41335fa6b833691c049 (patch) | |
| tree | a861407c0f58f7fc0b117439f48bcf8faee7ea36 /ssl | |
| parent | 280b1f1ad12131defcd986676a8fc9717aaa601b (diff) | |
Fix DTLS anonymous EC(DH) denial of service
CVE-2014-3510
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Diffstat (limited to 'ssl')
| -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 9a94de00d8..0a006a7534 100644 --- a/ssl/s3_clnt.c +++ b/ssl/s3_clnt.c @@ -2385,6 +2385,13 @@ 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 |