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From: Lars Ingebrigtsen <larsi@gnus.org>
To: emacs-devel@gnu.org
Subject: Re: Emacs/Mutt and  Efail or OpenPGP is safer than S/MIME?
Date: Wed, 16 May 2018 11:56:32 +0200	[thread overview]
Message-ID: <m3sh6r9b5b.fsf@gnus.org> (raw)
In-Reply-To: <m34lj89cao.fsf@gnus.org> (Lars Ingebrigtsen's message of "Wed, 16 May 2018 11:31:43 +0200")

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Uwe Brauer <oub@mat.ucm.es> writes:
>
>> The point is that sometimes I receive email containing mathematical
>> formula in png format, which are displayed. So I checked and I have
>>
>> ,----
>> | gnus-blocked-images is a variable defined in ‘gnus-art.el’.
>> | Its value is nil
>
> [...]
>
>> Do I understand that in this case I am vulnerable?
>
> Yes.

That is, if you load external resources, you've vulnerable to
information leakage, and people will track whether you've read their
emails and stuff.

You're not vulnerable to the first form of the S/MIME attack, because
Gnus isn't insane, but you are somewhat vulnerable to the second form
(the one that involves mangling the encrypted PGP payload itself).

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no



  reply	other threads:[~2018-05-16  9:56 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-15  8:44 Emacs/Mutt and Efail or OpenPGP is safer than S/MIME? Uwe Brauer
2018-05-15  9:42 ` Lars Ingebrigtsen
2018-05-15 19:26   ` Uwe Brauer
2018-05-15 21:48     ` Lars Ingebrigtsen
2018-05-16  8:22       ` Uwe Brauer
2018-05-16  9:31         ` Lars Ingebrigtsen
2018-05-16  9:56           ` Lars Ingebrigtsen [this message]
2018-05-16  8:43       ` Uwe Brauer
2018-05-16  9:32         ` Lars Ingebrigtsen
2018-05-16 10:24           ` Uwe Brauer
2018-05-16 10:30             ` Lars Ingebrigtsen
2018-05-16  2:52 ` Richard Stallman
2018-05-16  8:24   ` Uwe Brauer
2018-05-16  9:30   ` Lars Ingebrigtsen
2018-05-17  3:03     ` Richard Stallman
2018-05-17  7:16       ` Robert Pluim
2018-05-16 15:56   ` Eli Zaretskii
2018-05-16 17:15     ` Andreas Schwab
2018-05-16 17:38       ` Eli Zaretskii
2018-05-16 18:58         ` Andreas Schwab
2018-05-18  2:30           ` Richard Stallman
2018-05-18 12:37             ` Uwe Brauer
2018-05-18 14:05               ` Lars Ingebrigtsen
2018-05-19  8:29                 ` Uwe Brauer
2018-05-19  9:59                   ` Eli Zaretskii
2018-05-19 10:08                     ` Uwe Brauer
2018-05-19 10:12                   ` Lars Ingebrigtsen
2018-05-20  3:15                 ` Richard Stallman
2018-05-20  3:15               ` Richard Stallman
2018-05-20 17:33                 ` Uwe Brauer
2018-05-21  4:15                   ` Richard Stallman
2018-05-20 17:34                 ` Lars Ingebrigtsen
2018-05-21  4:15                   ` Richard Stallman
2018-07-22 13:58                     ` Lars Ingebrigtsen
2018-05-16 19:52         ` Joost Kremers
2018-05-17  3:05       ` Richard Stallman
2018-05-17  3:05     ` Richard Stallman
2018-05-17 15:09       ` Eli Zaretskii
2018-05-18  2:34         ` Richard Stallman

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