From owner-freebsd-security@FreeBSD.ORG Mon Mar 31 12:04:48 2003 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AE8DA37B401 for ; Mon, 31 Mar 2003 12:04:48 -0800 (PST) Received: from gw.nectar.cc (gw.nectar.cc [208.42.49.153]) by mx1.FreeBSD.org (Postfix) with ESMTP id CAD6B43F85 for ; Mon, 31 Mar 2003 12:04:47 -0800 (PST) (envelope-from nectar@celabo.org) Received: from madman.celabo.org (madman.celabo.org [10.0.1.111]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "madman.celabo.org", Issuer "celabo.org CA" (verified OK)) by gw.nectar.cc (Postfix) with ESMTP id 2C5AD66; Mon, 31 Mar 2003 14:04:47 -0600 (CST) Received: by madman.celabo.org (Postfix, from userid 1001) id 567AC78C66; Mon, 31 Mar 2003 14:04:46 -0600 (CST) Date: Mon, 31 Mar 2003 14:04:46 -0600 From: "Jacques A. Vidrine" To: Brett Glass Message-ID: <20030331200446.GA41695@madman.celabo.org> Mail-Followup-To: "Jacques A. Vidrine" , Brett Glass , "Nikolaj I. Potanin" , freebsd-security@FreeBSD.org References: <4.3.2.7.2.20030331122909.031ac940@localhost> <4.3.2.7.2.20030331102232.0327fa90@localhost> <3E887850.7010100@drweb.ru> <4.3.2.7.2.20030331102232.0327fa90@localhost> <4.3.2.7.2.20030331122450.031ace50@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4.3.2.7.2.20030331122909.031ac940@localhost> <4.3.2.7.2.20030331122450.031ace50@localhost> X-Url: http://www.celabo.org/ User-Agent: Mutt/1.5.3i-ja.1 cc: freebsd-security@FreeBSD.org Subject: Re: what was that? X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2003 20:04:50 -0000 On Mon, Mar 31, 2003 at 12:26:56PM -0700, Brett Glass wrote: > >No, I don't think so. > > You have a right to disagree, of course. However, some MUAs > HAVE been reported to have buffer overflow vulnerabilities > that can be exploited via an excessively long message ID > header. I have installed a filter that shortens them to > prevent Outlook users from being nailed by this bug. On Mon, Mar 31, 2003 at 12:29:59PM -0700, Brett Glass wrote: > Oh, and elm apparently has a buffer overflow in Message-ID header > handling too. See > > http://www.linuxsecurity.com/advisories/redhat_advisory-1497.html Read my post about the type of data that was in the Message-ID. It doesn't /look/ like an overflow --- I did not recognize the data as executable code `as is', nor once it was decoded. Thus, I do not believe that it is a particular attempt at causing a buffer overflow in a MTA or MUA. Cheers, -- Jacques A. Vidrine http://www.celabo.org/ NTT/Verio SME . FreeBSD UNIX . Heimdal Kerberos jvidrine@verio.net . nectar@FreeBSD.org . nectar@kth.se