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XFree86-xfs-4.0.1-1 DoS
From: Jarosław Zachwieja <grok () mhd pl>
Date: Wed, 6 Jun 2001 16:31:49 +0200


xfs from the package XFree86-xfs-4.0.1-1 (i386.rpm), RedHat 7.0 seems to 
suffer from a Denial of Service attack.
To cause xfs to stop responding for requests, try to do the fillowing:

$ telnet victim xfs </dev/urandom

Repeat about 100 (or 1000) times and you get Connection refused message.

Regular Xservers can no longer connect, usually crash stating Could not open 
default font 'fixed' and probably get disabled for 5 minutes if run from 

I'd appreciate any succesfull/unsuccesfull attemps of reproducing this 

Valentine M. Smith

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