[issue22638] ssl module: the SSLv3 protocol is vulnerable ("POODLE" attack)

[Antoine Pitrou]

Antoine Pitrou added the comment:

"""Disabling SSL 3.0 support, or CBC-mode ciphers with SSL 3.0, is sufficient to mitigate this issue, but presents significant compatibility problems, even today. Therefore our recommended response is to support TLS_FALLBACK_SCSV. This is a mechanism that solves the problems caused by retrying failed connections and thus prevents attackers from inducing browsers to use SSL 3.0. It also prevents downgrades from TLS 1.2 to 1.1 or 1.0 and so may help prevent future attacks."""

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22638>
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