SecurityFocus

rPSA-2006-0122-2 kernel Jul 13 2006 08:28PM
Justin M. Forbes (jmforbes rpath com) (1 replies)

Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround Jul 14 2006 02:50PM
Caveo Internet BV - Security (security caveo nl) (3 replies)

Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround Jul 14 2006 07:08PM
Hugo van der Kooij (hvdkooij vanderkooij org)

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.

Hugo.

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

[ reply ]

Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround Jul 14 2006 06:36PM
Lukasz Trabinski (lukasz wsisiz edu pl) (1 replies)

Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround Jul 16 2006 10:11AM
Michal Zalewski (lcamtuf dione ids pl)

Re: Linux Kernel 2.6.x PRCTL Core Dump Handling -- Simple workaround Jul 14 2006 05:32PM
Michael Shigorin (mike osdn org ua)