FreeBSD and the Rose Attack / NewDawn

[Mike Silbersack]

I'll take a look at it while I'm at BSDCan next week.  From your website's 
description of the attack, I don't see why FreeBSD would be affected so 
greatly... we must be wasting a lot of time traversing linked lists / etc.

Mike "Silby" Silbersack

On Mon, 2 May 2005 gandalf at digital.net wrote:

> Greetings and Salutations:
>
> I *just* got my FreeBSD setup stable and working witha  KDE GUI. :-).  I know, easy for you guys but this is the first time I have set up FreeBSD with automatic updates.  I settled on FreeBSD 5.4 after many tries.
>
> I tried the Rose Attack / NewDawn against my laptop (it is a slow Pentium II 400 MHz Dell Inspiron 7000):
> http://digital.net/~gandalf/Rose_Frag_Attack_Explained.htm
>
> Specifically:
> ./NewDawn4 1 <IP Address> 0 5 9999 99999999 4000 2
>
> My machine locked up at pretty close to 100% when viewing the top command.
>
> I asked a fellow worker who had a PIII 733 MHz to take a look and he reported about 70% CPU increase.
>
> FYI.  You might wish to take a look into this, IMHO this is a decent CPU DOS.
>
> Ken
>
> ------------------------------------------------------------------
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