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Full Disclosure Mailing List Archive

From: gadgeteer@elegantinnovations.org
Date: Wed Dec 15 2004 - 15:48:28 EST


On Wed, Dec 15, 2004 at 01:31:30PM +0100, Paul Starzetz (ihaquer@isec.pl) wrote:
> I don't think this is practicable, since the bugs reside in deep kernel
> functions. You can not fix it just by disabling a particular syscall. You
> have patch a running kernel binary, maybe someone comes up with this kind
> of utlility.

Not by disabling the syscall but by replacing it in the manner that a
rootkit replaces syscalls. Build a new kernel from the same
source/config except for patch. Replace syscalls where there is change.
Practical?
Stable?
No. Much easier to simply reboot to new kernel. If service(s) are so
critical as to not tolerate a reboot yet have a single point of failure
on this one component then there are greater problems at play.

-- 
Chief Gadgeteer
Elegant Innovations
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