From owner-freebsd-questions@FreeBSD.ORG Sat Dec 2 08:02:48 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 205A316A407 for ; Sat, 2 Dec 2006 08:02:48 +0000 (UTC) (envelope-from willem.hendriks.reg@xs4all.nl) Received: from smtp-vbr3.xs4all.nl (smtp-vbr3.xs4all.nl [194.109.24.23]) by mx1.FreeBSD.org (Postfix) with ESMTP id 800AD43C9D for ; Sat, 2 Dec 2006 08:02:27 +0000 (GMT) (envelope-from willem.hendriks.reg@xs4all.nl) Received: from [192.168.6.100] (a82-93-0-128.adsl.xs4all.nl [82.93.0.128] (may be forged)) (authenticated bits=0) by smtp-vbr3.xs4all.nl (8.13.8/8.13.8) with ESMTP id kB282cLW071747 for ; Sat, 2 Dec 2006 09:02:46 +0100 (CET) (envelope-from willem.hendriks.reg@xs4all.nl) Message-ID: <457132E5.9040001@xs4all.nl> Date: Sat, 02 Dec 2006 09:01:41 +0100 From: Willem Hendriks User-Agent: Thunderbird 1.5.0.8 (X11/20061129) MIME-Version: 1.0 To: FreeBSD mailing list - freebsd-questions X-Enigmail-Version: 0.94.1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by XS4ALL Virus Scanner Subject: PaX in FreeBSD like grsecurity and OpenBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Dec 2006 08:02:48 -0000 OpenBSD has: Memory protection purify * W^X * .rodata segment * Guard pages * Randomized malloc() * Randomized mmap() * atexit() and stdio protection In grsecurity there is PaX: http://pax.grsecurity.net/ Can these features really prevent some exploits? I tried to search equivalants in FreeBSD. Greetings Willem Hendriks