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Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround
From: Hugo van der Kooij <hvdkooij () vanderkooij org>
Date: Fri, 14 Jul 2006 21:08:46 +0200 (CEST)

On Fri, 14 Jul 2006, Caveo Internet BV - Security wrote:

The most easy way to stop this vulnerability is this by sepcifying the core
dump location

echo /root/core > /proc/sys/kernel/core_pattern

This specifies /root as core dump location which makes it unavailable for
the local user.

This would be just shifting problems. /root is usually not that big. So
you end up with a core dump filling up your root disk. Not a pretty sight
I might add.

Either disable coredumps or send them to a place with plenty of diskspace
left and protect that one from prying eyes.


        I hate duplicates. Just reply to the relevant mailinglist.
        hvdkooij () vanderkooij org             http://hvdkooij.xs4all.nl/
                Don't meddle in the affairs of magicians,
                for they are subtle and quick to anger.

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