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#29182: CVE-2017-1000383: umask and backup files Date: Tue, 07 Nov 2017 14:29:25 -0500 Message-ID: References: <6tefpag8ah.fsf@fencepost.gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1510083015 18837 195.159.176.226 (7 Nov 2017 19:30:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 7 Nov 2017 19:30:15 +0000 (UTC) User-Agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) To: 29182@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Nov 07 20:30:11 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 1eC9ZZ-0004Xh-LU for geb-bug-gnu-emacs@m.gmane.org; Tue, 07 Nov 2017 20:30:09 +0100 Original-Received: from localhost ([::1]:55527 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eC9Zd-0007mh-Vk for geb-bug-gnu-emacs@m.gmane.org; Tue, 07 Nov 2017 14:30:14 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41514) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eC9ZT-0007mL-3B for bug-gnu-emacs@gnu.org; Tue, 07 Nov 2017 14:30:08 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eC9ZS-0001oJ-G5 for bug-gnu-emacs@gnu.org; Tue, 07 Nov 2017 14:30:03 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48344) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eC9ZS-0001oD-Dw for bug-gnu-emacs@gnu.org; Tue, 07 Nov 2017 14:30:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eC9ZS-0005zp-6B for bug-gnu-emacs@gnu.org; Tue, 07 Nov 2017 14:30:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Glenn Morris Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 07 Nov 2017 19:30:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 29182 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: security Original-Received: via spool by 29182-submit@debbugs.gnu.org id=B29182.151008297422985 (code B ref 29182); Tue, 07 Nov 2017 19:30:02 +0000 Original-Received: (at 29182) by debbugs.gnu.org; 7 Nov 2017 19:29:34 +0000 Original-Received: from localhost ([127.0.0.1]:57025 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eC9Z0-0005yf-Mk for submit@debbugs.gnu.org; Tue, 07 Nov 2017 14:29:34 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:50421) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eC9Yy-0005yN-0Z for 29182@debbugs.gnu.org; Tue, 07 Nov 2017 14:29:32 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eC9Yr-0001U4-QF for 29182@debbugs.gnu.org; Tue, 07 Nov 2017 14:29:26 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:56938) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eC9Yr-0001Tz-Mj for 29182@debbugs.gnu.org; Tue, 07 Nov 2017 14:29:25 -0500 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1eC9Yr-0001i4-9D; Tue, 07 Nov 2017 14:29:25 -0500 X-Spook: Kennedy Ermes Attorney General Smallpox Smart Crowell X-Ran: wP8JM:Pf\l^EF(q@|J5iNwYoA|bPDr,z'=GbhCv!QVgbizj_iK~spt~Y"3'5TT/_G@?Zty X-Hue: cyan X-Attribution: GM In-Reply-To: <6tefpag8ah.fsf@fencepost.gnu.org> (Glenn Morris's message of "Mon, 06 Nov 2017 20:57:26 -0500") 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:139574 Archived-At: One solution is to put backup files in a single (private) location, rather than alongside the original file. This is achievable in Emacs with eg (setq backup-directory-alist '(("\\`/[^/|:][^/|]*:") ("." . "/.emacs.d/backups"))) where ~/.emacs.d/backups is created mode 700. I've used this in my personal config for years. A very brief search suggests that this seems to be what newer editors (eg LibreOffice) do for backup files.