diff -up openssl-1.0.2g/ssl/ssl_lib.c.v2v3 openssl-1.0.2g/ssl/ssl_lib.c
--- openssl-1.0.2g/ssl/ssl_lib.c.v2v3	2016-03-01 16:38:26.879142021 +0100
+++ openssl-1.0.2g/ssl/ssl_lib.c	2016-03-01 16:41:32.977353769 +0100
@@ -2055,11 +2055,11 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *m
     ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
 
     /*
-     * Disable SSLv2 by default, callers that want to enable SSLv2 will have to
-     * explicitly clear this option via either of SSL_CTX_clear_options() or
+     * Disable SSLv2 and SSLv3 by default, callers that want to enable these will have to
+     * explicitly clear these options via either of SSL_CTX_clear_options() or
      * SSL_clear_options().
      */
-    ret->options |= SSL_OP_NO_SSLv2;
+    ret->options |= SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
 
     return (ret);
  err: