From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id SNh4OWBTHWAsMQAA0tVLHw (envelope-from ) for ; Fri, 05 Feb 2021 14:17:04 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id KJhkNWBTHWAfRgAA1q6Kng (envelope-from ) for ; Fri, 05 Feb 2021 14:17:04 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 9E603940309 for ; Fri, 5 Feb 2021 14:17:04 +0000 (UTC) Received: from localhost ([::1]:51686 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l81ux-0004AT-DY for larch@yhetil.org; Fri, 05 Feb 2021 09:17:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:36268) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l81ug-00048q-IV for guix-devel@gnu.org; Fri, 05 Feb 2021 09:16:46 -0500 Received: from laurent.telenet-ops.be ([2a02:1800:110:4::f00:19]:55442) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l81ue-0006sC-6y for guix-devel@gnu.org; Fri, 05 Feb 2021 09:16:46 -0500 Received: from ptr-bvsjgyjmffd7q9timvx.18120a2.ip6.access.telenet.be ([IPv6:2a02:1811:8c09:9d00:aaf1:9810:a0b8:a55d]) by laurent.telenet-ops.be with bizsmtp id RSGg2400r0mfAB401SGgqZ; Fri, 05 Feb 2021 15:16:40 +0100 Message-ID: Subject: Re: Potential security weakness in Guix services From: Maxime Devos To: Ludovic =?ISO-8859-1?Q?Court=E8s?= Date: Fri, 05 Feb 2021 15:16:39 +0100 In-Reply-To: <56adb5efa894304c27beba99b07e2f8cfd8ee7cb.camel@telenet.be> References: <87k0rrls0z.fsf@gnu.org> <08F0CD76-DDCF-4CFA-AE8D-5FB165A62B25@lepiller.eu> <87o8h2ehy7.fsf@gnu.org> <69968b3a01d872cabdf55a94b6c82d5057e010c9.camel@telenet.be> <87v9b66dm1.fsf@gnu.org> <56adb5efa894304c27beba99b07e2f8cfd8ee7cb.camel@telenet.be> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-4K+9MGQhmudMCJ41qanR" User-Agent: Evolution 3.34.2 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telenet.be; s=r21; t=1612534600; bh=IMmEkdZMlg/xavMmEOuOpASTvum0PqF5tCi7xRCm0dg=; h=Subject:From:Reply-To:To:Cc:Date:In-Reply-To:References; b=ASl+qvAN1UEsuF1nn/tyYIL9VmFrUyvCvpWRZvdtuWPHpCGmKXjOM0SL7p320vEPH zPk5j7RgDKHtxw1gsAUc7wehREKge7jMx25gNjPJeTql5B2ZDbbALGUauvRFw/brI8 yMneFdLDQhlksiU1zCBhV8BHE7gbjXDqWs0fNG5dtTN5CsEjzROSBk51wCA+kJqZHK PMfxEInTuKDn/A7Nu+ADz63EErEqD1ERlHm2JPtAS0q9uKeAExmczmayznrfTmfZz/ 5xQEPrDPYh0cmM7Am+1c7XRfjRYkscS3RbFdOD/fuo8VICq0xIfSE73VkBNmSRPJHS gzIRjS8SvSHIQ== Received-SPF: pass client-ip=2a02:1800:110:4::f00:19; envelope-from=maximedevos@telenet.be; helo=laurent.telenet-ops.be X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: guix-devel@gnu.org Cc: guix-devel@gnu.org Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -5.15 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=telenet.be header.s=r21 header.b=ASl+qvAN; dmarc=pass (policy=none) header.from=telenet.be; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 9E603940309 X-Spam-Score: -5.15 X-Migadu-Scanner: scn1.migadu.com X-TUID: Qmo8t+V07mmJ --=-4K+9MGQhmudMCJ41qanR Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2021-02-05 at 13:20 +0100, Maxime Devos wrote: > On Fri, 2021-02-05 at 10:57 +0100, Ludovic Court=C3=A8s wrote: > > [...] > [...] >=20 > I'll try to implement this API in Scheme (using the FFI), and post > it at https://notabug.org/mdevos/things. I'll post a follow-up > messsage once I've implemented the basics (openat, chmodat, > chownat). Ping! https://notabug.org/mdevos/things/src/a0715e6758ad43252e16993dcf688a2515605= 7f3/fs-at.scm --=-4K+9MGQhmudMCJ41qanR Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iI0EABYIADUWIQTB8z7iDFKP233XAR9J4+4iGRcl7gUCYB1TRxccbWF4aW1lZGV2 b3NAdGVsZW5ldC5iZQAKCRBJ4+4iGRcl7nUPAPsH9KXqmRejDUetGW2tQtc9Sa6/ 2JTTBINsrZUWiUQnTwEAj7xQNb2qCWMk2l1LswINy9/1PZ2r91UlzEe4lXoxbw4= =IGWx -----END PGP SIGNATURE----- --=-4K+9MGQhmudMCJ41qanR--