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From: Florian Weimer <fw@deneb.enyo.de>
To: rms@gnu.org
Cc: 766397@bugs.debian.org, 766397-forwarded@bugs.debian.org,
	kurt@roeckx.be, Rob Browning <rlb@defaultvalue.org>,
	emacs-devel@gnu.org
Subject: Re: Bug#766395: emacs/gnus: Uses s_client to for SSL.
Date: Thu, 23 Oct 2014 20:00:08 +0200	[thread overview]
Message-ID: <87mw8mzmxj.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <E1XhLLS-0005Pt-BQ@fencepost.gnu.org> (Richard Stallman's message of "Thu, 23 Oct 2014 12:34:38 -0400")

* Richard Stallman:

> I've read that falling back to ssl3 is a real security hole,
> being exploited frequently.  That feature should be removed.

GNUTLS automatically and securely upgrades to a TLS protocol if
supported by the server.  Dropping SSL 3.0 support altogether will
only encourage unencrypted connections instead.  Furthermore, SSL 3.0
is certainly not an ideal design, but neither is TLS 1.0.  Only
TLS 1.1 and later attempt to fix the padding issue, and support for
those versions is still poor in servers.  Fortunately, the padding
issues are only exploitable under fairly narrow circumstances.
Most applications (except web browsers) use SSL 3.0 in such a way that
the attack described in the POODLE paper does not apply.



  reply	other threads:[~2014-10-23 18:00 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20141022193441.GA11872@roeckx.be>
2014-10-22 20:02 ` Bug#766395: emacs/gnus: Uses s_client to for SSL Rob Browning
2014-10-22 20:05   ` Rob Browning
2014-10-23 14:03     ` Ted Zlatanov
2014-10-23 15:57       ` Rob Browning
2014-10-24 13:39         ` Ted Zlatanov
2016-02-20 15:28           ` Kurt Roeckx
2016-02-21  2:47             ` Lars Ingebrigtsen
2017-02-22 20:38               ` Bug#766397: " Antoine Beaupre
2017-04-16 17:28                 ` Rob Browning
2014-10-22 20:14   ` Stefan Monnier
2014-10-22 21:02   ` Andreas Schwab
2014-10-23 16:49     ` Andreas Schwab
2014-10-23 17:29       ` Lars Magne Ingebrigtsen
2014-10-23 20:36         ` Stefan Monnier
2014-10-24  7:01           ` Lars Magne Ingebrigtsen
2014-10-27 19:42             ` Filipp Gunbin
2014-10-23 16:34   ` Richard Stallman
2014-10-23 18:00     ` Florian Weimer [this message]
2014-10-23 18:37       ` Perry E. Metzger
2014-10-23 18:43         ` Florian Weimer
2014-10-23 18:57           ` Perry E. Metzger
2014-10-23 18:59             ` Florian Weimer
2014-10-23 19:11               ` Kurt Roeckx
2014-10-23 19:42               ` Perry E. Metzger
2014-10-23 19:50                 ` Florian Weimer
2014-10-23 20:26                   ` Perry E. Metzger
2014-10-23 21:05                     ` Kurt Roeckx
2014-10-24  2:56                       ` Perry E. Metzger
2014-10-23 21:48                 ` Stephen J. Turnbull
2014-10-24  3:00                   ` Perry E. Metzger
2014-10-24 20:51                     ` Stephen J. Turnbull
2014-10-24 21:14                       ` Perry E. Metzger
2014-10-24 21:33                         ` Lars Magne Ingebrigtsen
2014-10-25  0:36                           ` Perry E. Metzger
2014-10-25 15:27                           ` Ted Zlatanov
2014-10-25 15:53                             ` Lars Magne Ingebrigtsen
2014-10-26  8:15                               ` Florian Weimer
2014-10-26 11:42                                 ` Lars Magne Ingebrigtsen
2014-10-26 12:45                                   ` Florian Weimer
2014-10-26  1:42                             ` Richard Stallman
2014-10-26  7:38                               ` Florian Weimer
2014-10-24 21:47                         ` Stephen J. Turnbull
2014-10-25  0:42                           ` Perry E. Metzger
2014-10-27 17:17                             ` Stephen J. Turnbull
2014-10-27 19:39                               ` Perry E. Metzger
2014-10-28  7:04                                 ` Stephen J. Turnbull
2014-10-28  7:45                                   ` Thien-Thi Nguyen
2014-10-28  8:44                                     ` Stephen J. Turnbull
2014-10-28 13:31                                   ` Stefan Monnier
2014-10-28 15:19                                     ` Perry E. Metzger
2014-10-28 15:33                                       ` Florian Weimer
2014-10-28 16:20                                         ` Perry E. Metzger
2014-10-28 16:52                                       ` Stefan Monnier
2014-10-28 17:11                                         ` Perry E. Metzger
2014-10-29  3:19                                       ` Stephen J. Turnbull
2014-10-28 15:10                                   ` Perry E. Metzger
2014-10-29  2:33                                     ` Stephen J. Turnbull
2014-10-29  3:06                                       ` Perry E. Metzger
2014-10-29  7:28                                         ` Stephen J. Turnbull
2014-10-29 11:19                                           ` Perry E. Metzger
2014-10-23 19:03             ` Kurt Roeckx
2014-10-24 13:35     ` Ted Zlatanov
2014-10-25  7:31       ` Richard Stallman
2014-10-25 14:33         ` Perry E. Metzger
2014-10-25 15:49         ` removing SSLv3 support by default from the Emacs GnuTLS integration (was: Bug#766395: emacs/gnus: Uses s_client to for SSL.) Ted Zlatanov

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