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From: Cedric Veilleux (cedric_at_neopeak.com)
Date: Mon 24 Mar 2003 - 09:52:08 GMT


I can confirm that this exploit does not work whith a patched ctx16-1, with
the patch from alan cox.

It does work with an unpatched ctx16-1 though..

Cedric

Le 24 Mars 2003 12:21, Luís Miguel Silva a écrit :
> I should have given the url to a working exploit on my original post.
> So, here it is:
> http://august.v-lo.krakow.pl/~anszom/km3.c
>
>
> -----Mensagem original-----
> De: Cedric Veilleux [mailto:cedric_at_neopeak.com]
> Enviada: segunda-feira, 24 de Março de 2003 1:20
> Para: vserver_at_solucorp.qc.ca; Luís Miguel Silva
> Assunto: Re: [vserver] Linux kmod/ptrace bug!
>
>
> I applied the ptrace patch on top of vanilla kernel, then the ctx16 patch
> and
> then the ctx16-1 patch. The kernel compiled fine and I am using it right
> now.
>
> All patches applied without rejects. I haven't tested if it is still
> vulnerable to that ptrace exploit simply because I don't know how this hole
> is exploited.
>
>
> Cedric
>
> Le 24 Mars 2003 10:45, Luís Miguel Silva a écrit :
> > Hello everybody,
> >
> > I've been busy the last couple of days so i just cut off any local access
> > on my servers because of the latest kernel bug. >:o)
> >
> > Has anybody patched (or as a working patch) against the vanilla + vserver
> > patched kernel?
> >
> > I havent tried to patch it (yeat) but it will *probably* work out on a
> > lot of errors.
> >
> > I also couldnt find any official patch, just this one:
> > http://www.hardrock.org/kernel/2.4.20/linux-2.4.20-ptrace.patch (is it
> > official?)
> >
> > Either way, as anybody patched the 2.4.20 kernel successfully with the
> > vserver patch included?
> >
> > Regards,
> > +-----------------------------------------
> >
> > | Luís Miguel Silva
> > | Network Administrator@ ISPGaya.pt
> > | Rua António Rodrigues da Rocha, 291/341
> > | Sto. Ovídio • 4400-025 V. N. de Gaia
> > | Portugal
> > | T: +351 22 3745730/3/5 F: +351 22 3745738
> > | G: +351 93 6371253 E: lms_at_ispgaya.pt
> > | H: http://lms.ispgaya.pt/
> >
> > +-----------------------------------------


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