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Date:      Fri, 11 Apr 1997 18:50:27 -0500
From:      "Jeffrey J. Mountin" <sysop@mixcom.com>
To:        tony@warp.co.uk
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Death Ping & 2.1.7.1R
Message-ID:  <3.0.32.19970411185027.00b70ac0@mixcom.com>

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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.


-------------------------------------------
Jeff Mountin - System/Network Administrator
jeff@mixcom.net

MIX Communications
Serving the Internet since 1990



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