[openssl-commits] [openssl] OpenSSL_1_0_2-stable update

[Matt Caswell]

The branch OpenSSL_1_0_2-stable has been updated
       via  15a7164eb7d4d031608fcec2801d7f7b11b16923 (commit)
      from  822d265cedd98a0dbf48b123a3a24f8528bb5842 (commit)


- Log -----------------------------------------------------------------
commit 15a7164eb7d4d031608fcec2801d7f7b11b16923
Author: Matt Caswell <m...@openssl.org>
Date:   Tue Nov 3 15:49:08 2015 +0000

    Only call ssl3_init_finished_mac once for DTLS
    
    In DTLS if an IO retry occurs during writing of a fragmented ClientHello
    then we can end up reseting the finish mac variables on the retry, which
    causes a handshake failure. We should only reset on the first attempt not
    on retries.
    
    Thanks to BoringSSL for reporting this issue.
    
    RT#4119
    
    Reviewed-by: Tim Hudson <t...@openssl.org>

-----------------------------------------------------------------------

Summary of changes:
 ssl/d1_clnt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ssl/d1_clnt.c b/ssl/d1_clnt.c
index 3a2038c..3ddfa7b 100644
--- a/ssl/d1_clnt.c
+++ b/ssl/d1_clnt.c
@@ -317,13 +317,12 @@ int dtls1_connect(SSL *s)
 #endif
 
         case SSL3_ST_CW_CLNT_HELLO_A:
-        case SSL3_ST_CW_CLNT_HELLO_B:
-
             s->shutdown = 0;
 
             /* every DTLS ClientHello resets Finished MAC */
             ssl3_init_finished_mac(s);
 
+        case SSL3_ST_CW_CLNT_HELLO_B:
             dtls1_start_timer(s);
             ret = ssl3_client_hello(s);
             if (ret <= 0)
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