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: Mon, 06 Nov 2017 16:56:18 -0500 Message-ID: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1510005426 18705 195.159.176.226 (6 Nov 2017 21:57:06 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 6 Nov 2017 21:57:06 +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 Mon Nov 06 22:57:02 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 1eBpOA-0004c2-3R for geb-bug-gnu-emacs@m.gmane.org; Mon, 06 Nov 2017 22:57:02 +0100 Original-Received: from localhost ([::1]:50422 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBpOH-0000Fh-7V for geb-bug-gnu-emacs@m.gmane.org; Mon, 06 Nov 2017 16:57:09 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52257) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBpOB-0000FY-JO for bug-gnu-emacs@gnu.org; Mon, 06 Nov 2017 16:57:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eBpOA-0001eS-U3 for bug-gnu-emacs@gnu.org; Mon, 06 Nov 2017 16:57:03 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:46040) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eBpOA-0001eD-RL for bug-gnu-emacs@gnu.org; Mon, 06 Nov 2017 16:57:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eBpOA-0000Fa-Ja for bug-gnu-emacs@gnu.org; Mon, 06 Nov 2017 16:57:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Glenn Morris Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 06 Nov 2017 21:57:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 29182 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: security X-Debbugs-Original-To: submit@debbugs.gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.1510005388891 (code B ref -1); Mon, 06 Nov 2017 21:57:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 6 Nov 2017 21:56:28 +0000 Original-Received: from localhost ([127.0.0.1]:54718 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eBpNc-0000EJ-KX for submit@debbugs.gnu.org; Mon, 06 Nov 2017 16:56:28 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:60992) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eBpNa-0000E7-SV for submit@debbugs.gnu.org; Mon, 06 Nov 2017 16:56:27 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eBpNU-0001Db-Fw for submit@debbugs.gnu.org; Mon, 06 Nov 2017 16:56:21 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:52850) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eBpNU-0001DX-C8 for submit@debbugs.gnu.org; Mon, 06 Nov 2017 16:56:20 -0500 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1eBpNS-00012y-Hv; Mon, 06 Nov 2017 16:56:18 -0500 X-Spook: Trafficking CNCIS ARPA Nationalist supercomputer Brown X-Ran: a$FnS_F/U`WxT3>:j()&ySm.cAg}w4Y5{C"dH$~]e 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:139529 Archived-At: Package: emacs Version: 25.3 Tags: security https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000383 GNU Emacs version 25.3.1 (and other versions most likely) ignores umask when creating a backup save file ("[ORIGINAL_FILENAME]~") resulting in files that may be world readable or otherwise accessible in ways not intended by the user running the emacs binary. [I'm not sure why this apparently hasn't been reported here before now?]