From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ulrich Mueller Newsgroups: gmane.emacs.bugs Subject: bug#51327: 28.0.60; emacsclient warns about XDG_RUNTIME_DIR when starting daemon on demand Date: Fri, 05 Nov 2021 19:05:17 +0100 Message-ID: References: <238ece9e-df13-a604-ba3a-36b346857423@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6750"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) Cc: 51327@debbugs.gnu.org To: Jim Porter Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Nov 05 19:06:12 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mj3bQ-0001Ym-EV for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Nov 2021 19:06:12 +0100 Original-Received: from localhost ([::1]:38168 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mj3bP-0004qw-0h for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 05 Nov 2021 14:06:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58714) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mj3bG-0004qo-GT for bug-gnu-emacs@gnu.org; Fri, 05 Nov 2021 14:06:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35582) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mj3bG-0001xh-7f for bug-gnu-emacs@gnu.org; Fri, 05 Nov 2021 14:06:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mj3bG-0007PD-2p for bug-gnu-emacs@gnu.org; Fri, 05 Nov 2021 14:06:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ulrich Mueller Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 05 Nov 2021 18:06:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 51327 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: security Original-Received: via spool by 51327-submit@debbugs.gnu.org id=B51327.163613553028429 (code B ref 51327); Fri, 05 Nov 2021 18:06:02 +0000 Original-Received: (at 51327) by debbugs.gnu.org; 5 Nov 2021 18:05:30 +0000 Original-Received: from localhost ([127.0.0.1]:47128 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mj3aj-0007OT-Sf for submit@debbugs.gnu.org; Fri, 05 Nov 2021 14:05:30 -0400 Original-Received: from woodpecker.gentoo.org ([140.211.166.183]:49864 helo=smtp.gentoo.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mj3ai-0007O1-7T for 51327@debbugs.gnu.org; Fri, 05 Nov 2021 14:05:28 -0400 In-Reply-To: <238ece9e-df13-a604-ba3a-36b346857423@gmail.com> (Jim Porter's message of "Fri, 5 Nov 2021 10:54:29 -0700") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:219016 Archived-At: Can someone please explain to me how an exploit on the _client_ side would look like? When starting the server, I can believe that there may be some surface for a symlink attack. But once the daemon is running? What is the security issue for the client checking TMPDIR?