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From: Daiki Ueno <ueno@unixuser.org>
Cc: Simon Josefsson <jas@extundo.com>,
	Satyaki Das <satyaki@chicory.stanford.edu>,
	ding@gnus.org, Reiner Steib <Reiner.Steib@gmx.de>,
	emacs-devel@gnu.org
Subject: Re: Security flaw in pgg-gpg-process-region?
Date: Mon, 04 Sep 2006 11:04:38 +0900	[thread overview]
Message-ID: <e0049689-8507-4a77-9b09-447f21211249@broken.deisui.org> (raw)
In-Reply-To: <87ac5gnccs.fsf@mid.deneb.enyo.de> (Florian Weimer's message of "Sun, 03 Sep 2006 18:28:35 +0200")

>>>>> In <87ac5gnccs.fsf@mid.deneb.enyo.de> 
>>>>>	Florian Weimer <fw@deneb.enyo.de> wrote:
> * Reiner Steib:

> > In current Emacs CVS in fact `call-process-region' uses temp files.
> > Bad.  I think this is a severe security problem, isn't it?

> Why?  AFAICS, Emacs uses mkstemp when available, which should get the
> permissions right.

May I answer the question on behalf of Reiner Steib?

When decrypting PGP messages PGG will send your passphrase along with
data, so if Emacs process is killed and you have stolen your note PC,
your passphrase can also be stolen from the temp file.

Regards,
-- 
Daiki Ueno

  reply	other threads:[~2006-09-04  2:04 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-26 12:41 pgg-output-buffer gets created as a unibyte buffer Katsumi Yamaoka
2006-04-26 13:22 ` Daiki Ueno
2006-04-26 22:27   ` Katsumi Yamaoka
2006-04-27  7:01     ` Katsumi Yamaoka
2006-04-27  9:36       ` Daiki Ueno
2006-04-27 10:19         ` Katsumi Yamaoka
2006-04-27 10:48           ` Katsumi Yamaoka
2006-04-27 14:45             ` Daiki Ueno
2006-04-27 15:23               ` Romain Francoise
2006-05-06 12:37                 ` pgg-gpg-process-region (was: pgg-output-buffer gets created as a unibyte buffer) Reiner Steib
2006-09-02 11:16                   ` Security flaw in pgg-gpg-process-region? (was: pgg-gpg-process-region) Reiner Steib
2006-09-02 13:16                     ` Security flaw in pgg-gpg-process-region? Daiki Ueno
2006-09-02 13:49                       ` Daiki Ueno
2006-09-03 15:16                         ` Richard Stallman
2006-09-04  1:36                           ` Daiki Ueno
2006-09-04 17:18                             ` Richard Stallman
2006-09-04 17:45                               ` Daiki Ueno
2006-09-04 17:48                                 ` David Kastrup
2006-09-05  5:06                                   ` Daiki Ueno
2006-09-05 15:10                                     ` Chong Yidong
2006-09-06  8:49                                     ` Richard Stallman
2006-09-06  9:25                                       ` Daiki Ueno
2006-09-07  6:54                                         ` Richard Stallman
2006-09-06  8:49                                 ` Richard Stallman
2006-09-03 15:16                     ` Security flaw in pgg-gpg-process-region? (was: pgg-gpg-process-region) Richard Stallman
2006-09-03 16:28                     ` Security flaw in pgg-gpg-process-region? Florian Weimer
2006-09-04  2:04                       ` Daiki Ueno [this message]
2006-09-04  2:25                         ` Miles Bader
2006-09-05  9:43                         ` Richard Stallman
2006-09-05 11:57                           ` Daiki Ueno
2006-09-06 19:05                             ` Richard Stallman
2006-09-06 19:33                               ` gdt
2006-09-06 21:33                                 ` Miles Bader
2006-09-07 21:13                                 ` Richard Stallman
2006-09-19 10:02                                   ` Sascha Wilde
2006-09-19 22:56                                     ` Richard Stallman
2006-11-11 22:00                                       ` Sascha Wilde
2006-11-12 21:12                                         ` Richard Stallman
2006-11-12 21:38                                           ` Sascha Wilde
2006-11-13 20:15                                             ` Richard Stallman
2006-11-14 11:11                                             ` Sascha Wilde
2006-09-06 22:44                               ` Daiki Ueno
2006-09-07 21:14                                 ` Richard Stallman
2006-09-06 20:11                           ` Florian Weimer
2006-09-07 14:12                             ` Chong Yidong
2006-09-07 21:13                             ` Richard Stallman
2006-04-27 16:08               ` pgg-output-buffer gets created as a unibyte buffer Katsumi Yamaoka
2006-04-28  5:18                 ` Katsumi Yamaoka

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