From: David Kastrup <dak@gnu.org>
Cc: Reiner Steib <reiner.steib@gmx.de>, emacs-devel@gnu.org
Subject: Re: Possible problem with Gnus
Date: 11 May 2004 14:40:09 +0200 [thread overview]
Message-ID: <x5y8nzuogm.fsf@lola.goethe.zz> (raw)
In-Reply-To: <E1BNWHg-000844-Cs@fencepost.gnu.org>
Richard Stallman <rms@gnu.org> writes:
> We have to pay attention to an issue of how Gnus and other Emacs mail
> readers treat MIME attachments.
>
> Windows viruses often spread in attachments for Word. We have to make
> sure that attachments don't become a method for spreading viruses in
> Emacs. Some kinds of attachments run applications that perhaps can be
> assumed safe, such as a gif displayer. But attachments that run more
> complex attachments, such as a browser that might execute programs
> given it, have to be treated as unsafe.
>
> I don't use Gnus. How does a Gnus user specify to display an
> attachment? Does the user do this for one specific attachment,
> or for all the attachments in one message? Does Gnus ever display
> attachments in a message without a specific direct user request
> for that message?
No, and you have to explicitly ask for display/extraction of each
attachment separately. The only exception AFAICS are inline image
attachments not exceeding a specific size, and text mode stuff like
rich text. I don't see any application for an exploit here. The
worst that can happen is that an invalid image manages to overflow a
decoding buffer in case that there is a bug in the library.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
next prev parent reply other threads:[~2004-05-11 12:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-09 23:07 Gnus for next release Miles Bader
2004-05-09 23:19 ` John Wiegley
2004-05-09 23:29 ` Stefan Monnier
2004-05-09 23:54 ` Miles Bader
2004-05-10 7:34 ` Frank Schmitt
2004-05-10 8:31 ` David Kastrup
2004-05-10 10:04 ` Reiner Steib
2004-05-11 12:22 ` Possible problem with Gnus Richard Stallman
2004-05-11 12:40 ` David Kastrup [this message]
2004-05-12 19:40 ` Richard Stallman
2004-05-11 13:48 ` Stefan Monnier
2004-05-11 16:07 ` Reiner Steib
2004-05-11 16:31 ` Paul Jarc
2004-05-12 9:59 ` Reiner Steib
2004-05-12 14:15 ` Paul Jarc
2004-05-12 15:48 ` Jesper Harder
2004-05-12 16:39 ` Reiner Steib
2004-05-12 15:36 ` Jesper Harder
2004-05-11 17:51 ` Stefan Monnier
2004-05-12 9:59 ` Reiner Steib
2004-05-12 10:34 ` David Kastrup
2004-05-13 15:45 ` Richard Stallman
2004-05-13 17:25 ` David Kastrup
2004-05-13 17:59 ` Stefan Monnier
2004-05-13 19:07 ` David Kastrup
2004-05-14 21:01 ` Richard Stallman
2004-05-14 21:18 ` David Kastrup
2004-05-15 18:33 ` Richard Stallman
2004-05-23 3:46 ` Andy Tai
2004-05-23 3:48 ` Andy Tai
2004-05-10 17:54 ` Gnus for next release Richard Stallman
2004-05-10 18:23 ` David Kastrup
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