Re: BitchX /ignore bug

[dufresne () WINTERNET COM (Ron DuFresne)]

If I read this correctly, this is not an attack perse, but a self
annihilation is it not?  and while a bug, not something one can use to
take others ofline or server, please correct me if I read this wrong.

Thanks,

Ron DuFresne

On Tue, 4 Jul 2000, Blue Boar wrote:

> Rick Jansen wrote:
> > I don't know whether this is the right place to put it, but i'm going to
> > anyway :)
>
> Yup, and probably Bugtraq, too.
>
> > Because of a simple /invite nickname #%s%s%s%s%s%s%s%s%s, BitchX will
> > segfault and coredump. This is a small programming error, you can find a
> > patch at this location:
> > http://root66.org/karin/BitchX-bug-patch-3-juli-2000.tar.gz by Frank van
> > Vliet, alias {}.
>
> The subject: line says /ignore, I assume this problem only occurs
> with /invite?  (I don't use IRC much.  /ignore wouldn't send
> anything to the ignored party, would it?)
>
> As a general question for vuln-dev:
>
> I've seen a number of these print string vulnerabilities pop up
> lately.  I gather that the programmer writes their printf or equiv
> wrong, and these attacks are getting interpreted as formatting strings
> somehow.
>
> Can someone explain to me what goes on on a stack level?  Are these
> exploitable (pushing code) instead of just crashing?
>
>                                       BB

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation." -- Johnny Hart
        ***testing, only testing, and damn good at it too!***

OK, so you're a Ph.D.  Just don't touch anything.