From owner-freebsd-current Wed May 27 05:56:36 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA23092 for freebsd-current-outgoing; Wed, 27 May 1998 05:56:36 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from firewall.ftf.dk (root@mail.ftf.dk [129.142.64.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA23086 for ; Wed, 27 May 1998 05:56:33 -0700 (PDT) (envelope-from regnauld@deepo.prosa.dk) Received: from mail.prosa.dk ([192.168.100.2]) by firewall.ftf.dk (8.7.6/8.7.3) with ESMTP id QAA14815; Wed, 27 May 1998 16:57:50 +0200 Received: from deepo.prosa.dk (deepo.prosa.dk [192.168.100.10]) by mail.prosa.dk (8.8.5/8.8.5/prosa-1.1) with ESMTP id OAA09713; Wed, 27 May 1998 14:56:23 +0200 (CEST) Received: (from regnauld@localhost) by deepo.prosa.dk (8.8.7/8.8.5/prosa-1.1) id OAA27877; Wed, 27 May 1998 14:55:25 +0200 (CEST) Message-ID: <19980527145525.02573@deepo.prosa.dk> Date: Wed, 27 May 1998 14:55:25 +0200 From: Philippe Regnauld To: Brian Feldman Cc: freebsd-current@FreeBSD.ORG Subject: Re: current instabilities References: <19980527032329.16263.qmail@m2.findmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Mailer: Mutt 0.88e In-Reply-To: <19980527032329.16263.qmail@m2.findmail.com>; from Brian Feldman on Wed, May 27, 1998 at 03:23:29AM -0000 X-Operating-System: FreeBSD 2.2.5-STABLE i386 Organization: PROSA Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG [Please format 78 cols next time :-)] Brian Feldman writes: > 2) "options VM86" - EVIL EVIL EVIL! This really allows way too much > access to the memory by a mortal, and it's an effective DoS attack if a > user runs doscmd, say, and a certain executable (this time, I happened > to try ZSnes). Think there may be a way to make this safer? (I locked > myself up, and it didn't panic so I don't know what exact function > caused it). Also, could USER_LDT possibly be used as a DoS attack, like > it seems to me it could? It can: an old WINE binary lying around freezes my machine solid. Been doing so for 1~2 months (available on request) -- -[ Philippe Regnauld / sysadmin / regnauld@deepo.prosa.dk / +55.4N +11.3E ]- «Pluto placed his bad dog at the entrance of Hades to keep the dead IN and the living OUT! The archetypical corporate firewall?» - S. Kelly Bootle To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message