Security update for Linux kernel

Knowledgebase

(Last modified: 30JUN2005)

solutions Security update for Linux kernel SuSE Linux Maintenance Web (69ddffb582a8d6e19fe711f5bd4bb472)

Applies to

Package: k_deflt
k_numa
k_smp
kernel-source
Product(s): SuSE Linux Enterprise Server 8 for AMD64
Patch: patch-10263
Release: 20050630
Obsoletes: 64251c053da708b39de6775b1dfb2ee3

Indications

Everyone using the Linux Kernel on x86_64 architecture should update.

Contraindications

None.

Problem description

This update fixes the following security problems:

CAN-2005-1768: A race condition in the 32bit compatibility execv() function could be used to overwrite kernel memory.
CAN-2005-1762: A local denial of service attack using ptrace was allowing local attackers to crash the machine.

This update also fixes the following bugs:

Several JFS stability fixes.
Fixed a small MD autostart bug.
Fixed memfrac and lower_zone_reserve kernel parameters.
Fixed a harmless bug in rwsem just in case some drivers use it.

Solution

Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system.
First, find out which kernel package to use, for example with


rpm -qf /boot/vmlinuz

Download the kernel image fitting your setup and install it with either:

rpm -Fvh k_deflt-2.4.*.rpm for the default kernel image, or
rpm -Fhv k_smp-2.4.*.rpm for the SMP kernel image, or
rpm -Fhv k_numa-2.4.*.rpm for the NUMA kernel image

Please do only install one of these kernels, not all of them.
Finally, reboot the system with


shutdown -r now

to load the new kernel (replace "now" with the appropriate amount of time to allow local users to cleanly log out, for example "+5" for five minutes.)

links to download packages

SUSE Linux Enterprise Server 8 for AMD64 (x86_64)

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

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