From: Kurt Roeckx <kurt@roeckx.be>
To: Ted Zlatanov <tzz@lifelogs.com>
Cc: 766397@bugs.debian.org, 766397-forwarded@bugs.debian.org,
Rob Browning <rlb@defaultvalue.org>,
emacs-devel@gnu.org
Subject: Re: Bug#766395: emacs/gnus: Uses s_client to for SSL.
Date: Sat, 20 Feb 2016 16:28:32 +0100 [thread overview]
Message-ID: <20160220152832.GA11566@roeckx.be> (raw)
In-Reply-To: <m2h9ytegdr.fsf@lifelogs.com>
On Fri, Oct 24, 2014 at 09:39:28AM -0400, Ted Zlatanov wrote:
> On Thu, 23 Oct 2014 10:57:17 -0500 Rob Browning <rlb@defaultvalue.org> wrote:
>
> RB> Ted Zlatanov <tzz@lifelogs.com> writes:
> >> could you provide a test case? The information gathered by
> >> `M-x report-emacs-bug' would be really helpful, too.
>
> RB> Hmm, I'm not the original reporter, and don't yet deeply understand the
> RB> relevant issues, but on the surface, the "bug" appears to just ask that
> RB> Emacs "stop using or mentioning s_client".
>
> I replied to the bug address as well, so I hope Kurt responds with a recipe.
>
> RB> If that turns out to be a reasonable request, then I'd imagine that the
> RB> code in imap.el, etc. would need adjustment, i.e.
>
> No, the logic that needs to change is the one that opens the network
> stream (and imap.el will be obsoleted, as Lars and Stefan mentioned).
> But I'd like to know what's using imap.el in Kurt's case because I don't
> know of any code that uses it. Was he just warning that imap.el *could*
> use s_client? I went to the original bug report and couldn't find that
> information, sorry.
>
> RB> In any case, I can certainly send you the report-emacs-bug information
> RB> from my system, but the bug didn't originate there (I don't even have
> RB> emacs23 installed at the moment). Did you mean for Kurt to send it?
>
> Yes, sorry, the web interface misled me. Kurt?
>
> RB> And what kind of test did you have in mind?
>
> Some code that lets me replicate the bug or issue on a Debian system,
> with enough information to let me bring up such a system in a virtual
> environment.
Someone suggested I should reply to this.
First, I'm not an emacs user, I'm the openssl maintainer in
Debian. I think this started with me disabling SSLv3 support and
then getting reports that I broke emacs / gnus and I just looked
around what was going on.
From what I understand, it is (or was) possible to configure
things in such a way that it uses s_client to set up SSL, even
when it's configured to use gnutls. You should never use s_client
for that. s_client is a debug tool. It does create an SSL
connection for you, but in an insecure way.
When looking around, I saw examples of using s_client in combination
with "-ssl2" and "-ssl3". That is, only support those protocol
versions. They are so broken that I removed support for them.
You should clearly never document that they should use those
options. That probably all comes from the time SSLv2 and SSLv3
were the only 2 supported protocol versions, and you should
probably update the documentation to have more recent information
in it.
I hope this clears things up.
Kurt
next prev parent reply other threads:[~2016-02-20 15:28 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 [this message]
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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160220152832.GA11566@roeckx.be \
--to=kurt@roeckx.be \
--cc=766397-forwarded@bugs.debian.org \
--cc=766397@bugs.debian.org \
--cc=emacs-devel@gnu.org \
--cc=rlb@defaultvalue.org \
--cc=tzz@lifelogs.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.