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authorJoel Sing <jsing@cvs.openbsd.org>2014-10-15 17:39:35 +0000
committerJoel Sing <jsing@cvs.openbsd.org>2014-10-15 17:39:35 +0000
commitf3d8b1e1618952b662d88a2e182ea23057ea6e91 (patch)
tree2170cf6e4bbe6d2b92b60628ba6dbc9947afde58 /lib/libssl
parent5b4bda80c2651430742479242fe9bd923fefae37 (diff)
Disable SSLv3 by default.
SSLv3 has been long known to have weaknesses and the POODLE attack has once again shown that it is effectively broken/insecure. As such, it is time to stop enabling a protocol was deprecated almost 15 years ago. If an application really wants to provide backwards compatibility, at the cost of security, for now SSL_CTX_clear_option(ctx, SSL_OP_NO_SSLv3) can be used to re-enable it on a per-application basis. General agreement from many. ok miod@
Diffstat (limited to 'lib/libssl')
-rw-r--r--lib/libssl/ssl_lib.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libssl/ssl_lib.c b/lib/libssl/ssl_lib.c
index f6a21d43514..d3108f2663d 100644
--- a/lib/libssl/ssl_lib.c
+++ b/lib/libssl/ssl_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_lib.c,v 1.85 2014/10/03 13:58:18 jsing Exp $ */
+/* $OpenBSD: ssl_lib.c,v 1.86 2014/10/15 17:39:34 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
@@ -1825,6 +1825,9 @@ SSL_CTX_new(const SSL_METHOD *meth)
*/
ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
+ /* Disable SSLv3 by default. */
+ ret->options |= SSL_OP_NO_SSLv3;
+
return (ret);
err:
SSLerr(SSL_F_SSL_CTX_NEW,