From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Glenn Morris Newsgroups: gmane.emacs.bugs Subject: bug#28350: enriched.el code execution Date: Mon, 11 Sep 2017 12:32:38 -0400 Message-ID: References: <837exb1bk5.fsf@gnu.org> <838thovvcr.fsf@gnu.org> <83wp57vmk6.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1505326563 1218 195.159.176.226 (13 Sep 2017 18:16:03 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 13 Sep 2017 18:16:03 +0000 (UTC) User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) Cc: "Charles A. Roelli" , 28350@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Sep 11 18:33:29 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1drRdu-0004pu-T9 for geb-bug-gnu-emacs@m.gmane.org; Mon, 11 Sep 2017 18:33:03 +0200 Original-Received: from localhost ([::1]:58883 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drRe2-0008I4-7d for geb-bug-gnu-emacs@m.gmane.org; Mon, 11 Sep 2017 12:33:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45694) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drRdv-0008Hr-GX for bug-gnu-emacs@gnu.org; Mon, 11 Sep 2017 12:33:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1drRdu-0001fW-Nt for bug-gnu-emacs@gnu.org; Mon, 11 Sep 2017 12:33:03 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:53368) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1drRdu-0001fR-KM for bug-gnu-emacs@gnu.org; Mon, 11 Sep 2017 12:33:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1drRdu-0007tC-DL for bug-gnu-emacs@gnu.org; Mon, 11 Sep 2017 12:33:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Glenn Morris Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 11 Sep 2017 16:33:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28350 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: security Original-Received: via spool by 28350-submit@debbugs.gnu.org id=B28350.150514757330312 (code B ref 28350); Mon, 11 Sep 2017 16:33:02 +0000 Original-Received: (at 28350) by debbugs.gnu.org; 11 Sep 2017 16:32:53 +0000 Original-Received: from localhost ([127.0.0.1]:33816 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1drRdl-0007sq-8S for submit@debbugs.gnu.org; Mon, 11 Sep 2017 12:32:53 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:54642) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1drRdj-0007sd-OO for 28350@debbugs.gnu.org; Mon, 11 Sep 2017 12:32:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1drRdd-0001bA-Qt for 28350@debbugs.gnu.org; Mon, 11 Sep 2017 12:32:46 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:35135) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1drRdY-0001Y4-11; Mon, 11 Sep 2017 12:32:40 -0400 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1drRdX-000445-Fg; Mon, 11 Sep 2017 12:32:39 -0400 X-Spook: kibo NOC class struggle Human to Human AFSPC Lexis-Nexis X-Ran: qU?my<^A7k.|%?X3 (Eli Zaretskii's message of "Sat, 09 Sep 2017 19:55:37 +0300") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:136910 Eli Zaretskii wrote: >> At this point it seems that unsafe display specs are more the >> exception than the rule, so it might make sense to define the >> `enriched-display-prop-safe-p' function by excluding the unsafe >> specifications instead of including the safe ones. What do you >> think? > > I'm not sure. The display spec can be complex, so to make sure none > of these exceptions sneak through, you will have to recursively unpack > the spec data structure and examine each of the elements, which smells > too similar to emulating 'eval'. No? FWIW, there is 'unsafep'.