From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932118AbWDYGbA (ORCPT ); Tue, 25 Apr 2006 02:31:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932120AbWDYGbA (ORCPT ); Tue, 25 Apr 2006 02:31:00 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:34961 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932118AbWDYGa7 (ORCPT ); Tue, 25 Apr 2006 02:30:59 -0400 Subject: Re: [ANNOUNCE] Release Digsig 1.5: kernel module for run-timeauthentication of binaries From: Arjan van de Ven To: Nix Cc: "Makan Pourzandi (QB/EMC)" , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, Serue Hallyen , Axelle Apvrille , disec-devel@lists.sourceforge.net In-Reply-To: <87zmiao8bq.fsf@hades.wkstn.nix> References: <6D19CA8D71C89C43A057926FE0D4ADAA29D361@ecamlmw720.eamcs.ericsson.se> <1145897277.3116.44.camel@laptopd505.fenrus.org> <87hd4ipvdk.fsf@hades.wkstn.nix> <1145911526.3116.71.camel@laptopd505.fenrus.org> <87zmiao8bq.fsf@hades.wkstn.nix> Content-Type: text/plain Date: Tue, 25 Apr 2006 08:30:50 +0200 Message-Id: <1145946650.3114.13.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2006-04-25 at 00:35 +0100, Nix wrote: > On Mon, 24 Apr 2006, Arjan van de Ven yowled: > > On Mon, 2006-04-24 at 21:32 +0100, Nix wrote: > >> It checks mmap and mprotect with PROT_EXEC, and execve(). > > > > so no jvm's or flash plugins. > > Well, you'll have to sign the flash plugin. This isn't > sign-at-compilation-time; the point I made is that a jvm has executable memory capabilities (it has to) and can be made an elf loader. At which point.. game over. > > so it's not all that easy as you make it sound > > Everyone seems to want the One Security Fix To Rule Them All. I'm not part of that "everyone". I'm all in favor of removing degrees of freedom. However this one doesn't, it's just pure fake. This is similar to posting a sign at your unlocked front door "please don't burgle me via my front door" while your windows are also open.