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35 lines
1.1 KiB
35 lines
1.1 KiB
6 years ago
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From 5b67aca6fb4246e84981d6361ba218bd52e73ac2 Mon Sep 17 00:00:00 2001
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From: Tomas Orsava <torsava@redhat.com>
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Date: Tue, 21 Jun 2016 15:52:03 +0200
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Subject: [PATCH] Raise an error when STARTTLS fails
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CVE-2016-0772 python: smtplib StartTLS stripping attack
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rhbz#1303647: https://bugzilla.redhat.com/show_bug.cgi?id=1303647
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Based on an upstream change by Benjamin Peterson <benjamin@python.org>
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- in changeset 101886:b3ce713fb9be 2.7
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- https://hg.python.org/cpython/rev/b3ce713fb9be
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---
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Lib/smtplib.py | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/Lib/smtplib.py b/Lib/smtplib.py
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index dc16ef6..8bc806b 100755
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--- a/Lib/smtplib.py
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+++ b/Lib/smtplib.py
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@@ -655,6 +655,11 @@ class SMTP:
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self.ehlo_resp = None
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self.esmtp_features = {}
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self.does_esmtp = 0
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+ else:
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+ # RFC 3207:
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+ # 501 Syntax error (no parameters allowed)
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+ # 454 TLS not available due to temporary reason
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+ raise SMTPResponseException(resp, reply)
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return (resp, reply)
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def sendmail(self, from_addr, to_addrs, msg, mail_options=[],
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--
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2.5.5
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