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Re: [Fwd: [BUGTRAQ] Big problem on 2.0.x?]
I confirmed it on a 2.0.38 machine.
No patch yet.
Hetz Ben Hamo wrote:
>
> Well, if YOU CHECK you will find that there are RPM's for kernel 2.0.38
> for redhat 5.x - compiled and ready.
>
> Just rpm -Uvh kernel-2.0.38(whatever the name is) and thats it..
>
> Hetz
>
> Omer wrote:
> >
> > Irrelevant.
> >
> > Most people will not upgrade the kernel on their own
> > to the latest stable version, but rather would only
> > upgrade using the official vendor errata. This is how
> > it is for all of the big-time operating systems, and
> > since Linux is poised to make it to the big time, you
> > have to expect this practice to become a lot more common.
> >
> > To which: Say you're a RH user, using 5.x.
> >
> > You will be using RedHat's errata updated for 5.2.
> >
> > The latest kernel included is 2.0.36, not patched
> > to fix this.
> >
> > Hetz Ben Hamo wrote:
> > >
> > > It fixed long time ago on kernel 2.0.38
> > >
> > > Hetz
> > >
> > > Omer wrote:
> > > >
> > > > This was posted to BugTraq today, and it seemed
> > > > important enough to pass on (even though if you are
> > > > a sysadmin and do not regularly read BT, you might
> > > > deserve what you get).
> > > >
> > > > It's what I'd call a HUGE problem, not
> > > > merely a big problem (unless of course you have
> > > > no local users). In any case, I'd chmod u-s /bin/ping
> > > > immediatly, and be careful not to ping as root (if
> > > > you're not sure you're up to it, better make it
> > > > chmod 000 /bin/ping :)
> > > >
> > > > Message to BT follows...
> > > >
> > > > ----------------------------------------------------------------------------------------
> > > >
> > > > Eduardo Cruz wrote:
> > > >
> > > > Hello ppl.
> > > >
> > > >
> > > > Last week i was playing with my old linux 2.0.36 i486 box, while i was
> > > > playing with the command ping and trying combinations of commands
> > > > i found that when u do a ping -s 65468 -R ANYIPADDRESS ( -R record
> > > > route) the system starts to print on the screen kernel dumps
> > > > , freezes complitely and after few secconds the system reboots.
> > > >
> > > > The major problem with this (if this is a bug, because i dont have time
> > > > to install differents kernels and test it better) is that command can be
> > > > run by everyone
> > > > because you dont need root permissions to make a -R.
> > > >
> > > > I tested this on a 2.0.35 and .36 (both slackware), when u try to do this
> > > > on a 2.2.x the system prints out "message too long".
> > > > I think the problem is that there is a size-check missed when u reach the
> > > > maximun packet size and u put the route information, but anyway
> > > > i am not a guru on kernels.
> > > >
> > > > So, now is time for the kernel experts :)
> > > >
> > > > ---------------------------------------------------------------------------
> > > > Eduardo Cruz - eduardo.cruz.@ts-g.com
> > > > Network Administrator
> > > > Telecomm Solutions Group
> > > > Tel: +350 74146 Fax: +350 41781
> > > > ---------------------------------------------------------------
> > > >
> > > > --
> > > > /--------------- Omer Efraim, omere@tcmail.tau.ac.il ------------------\
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> > > >
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> >
> > --
> > /--------------- Omer Efraim, omere@tcmail.tau.ac.il ------------------\
> > [ Microsoft Vaccine 2000 is configuring your immune system. This may ]
> > [ take a few minutes. If your body stops responding for a long time and ]
> > [ there is no brain activity please die. Setup will continue after you ]
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> > - Quoting Buzh, asr
>
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--
/--------------- Omer Efraim, omere@tcmail.tau.ac.il ------------------\
[ Microsoft Vaccine 2000 is configuring your immune system. This may ]
[ take a few minutes. If your body stops responding for a long time and ]
[ there is no brain activity please die. Setup will continue after you ]
[ are reborn. ]
\-----------------------------------------------------------------------/
- Quoting Buzh, asr
=================================================================
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