[Python-checkins] cpython: Issue #22638: SSLv3 is now disabled throughout the standard library.

[antoine.pitrou]

https://hg.python.org/cpython/rev/e971f3c57502
changeset: 93107:e971f3c57502
parent: 93102:bcc3f167a30b
user: Antoine Pitrou <solipsis at pitrou.net>
date: Fri Oct 17 19:28:30 2014 +0200
summary:
Issue #22638: SSLv3 is now disabled throughout the standard library.
It can still be enabled by instantiating a SSLContext manually.

files:
Lib/ssl.py | 3 +++
Misc/NEWS | 3 +++
2 files changed, 6 insertions(+), 0 deletions(-)


diff --git a/Lib/ssl.py b/Lib/ssl.py
--- a/Lib/ssl.py
+++ b/Lib/ssl.py
@@ -454,6 +454,9 @@
context = SSLContext(protocol)
# SSLv2 considered harmful.
context.options |= OP_NO_SSLv2
+ # SSLv3 has problematic security and is only required for really old
+ # clients such as IE6 on Windows XP
+ context.options |= OP_NO_SSLv3

if cert_reqs is not None:
context.verify_mode = cert_reqs
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -178,6 +178,9 @@
Library
-------

+- Issue #22638: SSLv3 is now disabled throughout the standard library.
+ It can still be enabled by instantiating a SSLContext manually.
+
- Issue #22641: In asyncio, the default SSL context for client connections
is now created using ssl.create_default_context(), for stronger security.