Tux DOS attack via Host: overflow

Hey,

I'm wondering if the DOS attack described in
http://www.securiteam.com/unixfocus/6B0080U35E.html has been fixed. I am
working with the version of Tux shipping with RedHat 7.2
(tux-2.1.0-2.i386.rpm), and I can crash my computer with Nessus'
Imail Host: overflow (http://cgi.nessus.org/plugins/dump.php3?id=10496)
script. Maybe another script works, too, but I'm still looking into this.

Of course, allowing the world to shut down my server is a thing that I don't
like so much :/

Greetings,

Johann