[nginx] SSL: removed use of the SSL_OP_MSIE_SSLV2_RSA_PADDING option.

[Sergey Kandaurov]

details:   https://hg.nginx.org/nginx/rev/dda421871bc2
branches:  
changeset: 7901:dda421871bc2
user:      Sergey Kandaurov <pluknet at nginx.com>
date:      Tue Aug 10 23:43:17 2021 +0300
description:
SSL: removed use of the SSL_OP_MSIE_SSLV2_RSA_PADDING option.

It has no effect since OpenSSL 0.9.7h and 0.9.8a.

diffstat:

 src/event/ngx_event_openssl.c |  5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)

diffs (15 lines):

diff -r 509b663a789c -r dda421871bc2 src/event/ngx_event_openssl.c
--- a/src/event/ngx_event_openssl.c	Tue Aug 10 23:43:17 2021 +0300
+++ b/src/event/ngx_event_openssl.c	Tue Aug 10 23:43:17 2021 +0300
@@ -299,11 +299,6 @@ ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_
     SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
 #endif
 
-#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
-    /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
-    SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
-#endif
-
 #ifdef SSL_OP_SSLEAY_080_CLIENT_DH_BUG
     SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
 #endif