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Family: Mandrake Local Security Checks --> Category: infos

MDKSA-2003:038: kernel Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the kernel package

Detailed Explanation for this Vulnerability Test

The remote host is missing the patch for the advisory MDKSA-2003:038 (kernel).

A bug in the kernel module loader code could allow a local user to gain root
rights. This is done by a local user using ptrace and attaching to a
modprobe process that is spawned if the user triggers the loading of a kernel
A temporary workaround can be used to defend against this flaw. It is possible
to temporarily disable the kmod kernel module loading subsystem in the kernel
after all of the required kernel modules have been loaded. Be sure that you do
not need to load additional kernel modules after implementing this workaround.
To use it, as root execute:
echo /no/such/file >/proc/sys/kernel/modprobe
To automate this, you may wish to add it as the last line of the
/etc/rc.d/rc.local file. You can revert this change by replacing the content
'/sbin/modprobe' in the /proc/sys/kernel/modprobe file. The root user can still
manually load kernel modules with this workaround in place.
This update applies a patch to correct the problem. All users should upgrade.
Please note that the Mandrake Linux 9.1 kernel already has this patch, and an
updated kernel for Mandrake Linux 8.2 will be available shortly.
For instructions on how to upgrade your kernel in Mandrake Linux, please refer

Solution :
Threat Level: High

Click HERE for more information and discussions on this network vulnerability scan.


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