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-rw-r--r--src/event/ngx_event_openssl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index f2419e466..fedb604de 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -185,8 +185,10 @@ ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
+#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
SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);