mailing list archives
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
- XFree86-xfs-4.0.1-1 DoS Jarosław Zachwieja (Jun 08)