From owner-freebsd-questions Sat Apr 12 15:32:02 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id PAA27478 for questions-outgoing; Sat, 12 Apr 1997 15:32:02 -0700 (PDT) Received: from ghost.mep.ruhr-uni-bochum.de (ghost.mep.ruhr-uni-bochum.de [134.147.6.16]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id PAA27446 for ; Sat, 12 Apr 1997 15:31:54 -0700 (PDT) Received: (from roberte@localhost) by ghost.mep.ruhr-uni-bochum.de (8.8.4/8.8.4) id AAA00428; Sun, 13 Apr 1997 00:31:35 +0200 (MESZ) From: Robert Eckardt Message-Id: <199704122231.AAA00428@ghost.mep.ruhr-uni-bochum.de> Subject: Re: Death Ping & 2.1.7.1R In-Reply-To: <3.0.32.19970411185027.00b70ac0@mixcom.com> from "Jeffrey J. Mountin" at "11. Apr. 97 18:47:31" To: sysop@mixcom.com (Jeffrey J. Mountin) Date: Sun, 13 Apr 1997 00:31:35 +0200 (MESZ) Cc: tony@warp.co.uk, freebsd-questions@freebsd.org X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk It was Jeffrey J. Mountin who wrote: > At 05:58 PM 4/11/97 +0000, Anthony Barlow wrote: > >I'm a little concerned with the problems people have been experiancing with > >SCSI on FBSD 2.2.1R. Is 2.1.7.1R suceptable to the 'death ping' I recall in > >an early message that 2.2.1 wasn't. > > Any system will be effected, especially if it is a flood. There is no real > way to protect from a denial of service, but a system is considered > vulernable if a large packet ping causes abnormal behaviour. > > Check out: > > http://www.sophist.demon.co.uk/ping/ > > and CERT advisory CA-96.26 for info. > > Interestingly the CERT says that 2.1.6 and -current were not vulnerable, > but the Ping o' Death page states 2.1.0 and up. Where does it say so ? The URL above says: 4.4. Safe operating systems Operating system Version Tested Solaris (Sparc) 2.3, 2.4, 2.5, 2.5.1 MVS Mainframe with TCP/IP stack from Interlink 3.1, 4.1 MVS Mainframe with TCP/IP stack from IBM 3.1, 3.2 FreeBSD 2.0 and above > Jeff Mountin - System/Network Administrator > jeff@mixcom.net Robert -- Robert Eckardt \\ FreeBSD -- solutions for a large universe.(tm) RobertE@MEP.Ruhr-Uni-Bochum.de \\ What do you want to boot tomorrow ?(tm) http://WWW.MEP.Ruhr-Uni-Bochum.de/~roberte For PGP-key finger roberte@gluon.MEP.Ruhr-Uni-Bochum.de