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Security update for kernel-source

Knowledgebase

(Last modified: 11APR2003)


solutions Security update for kernel-source SuSE Linux Maintenance Web (3dd6d0bf897a0f13e2eb3d7349462273)

Applies to

Product(s): SuSE Linux Enterprise Server 8 for IBM iSeries and IBM pSeries

Package: kernel-source
Release: 20030411
Obsoletes: none

Indications

This update should be installed on all systems for security reasons.

Problem description

This update fixes a security vulnerability in the Linux kernel (CAN-2003-0127). The vulnerability allows a local unprivileged attacker to gain root privileges by using ptrace/strace in combination with automatic kernel module loading on request, also known as "kmod".
As a temporary workaround, it is possible to disable the automatic loading of kernel modules by running the following command as root:
echo /no/such/file > /proc/sys/kernel/modprobe
Note: This is the kernel source code only. To fix the problem you have to install in addition the appropriate kernel binary rpm for your machine, either kernel-ppc64 on pSeries or kernel-iseries64 on an iSeries system
In addition the following bugs are fixed:
  • made nfs over udp more reliable (see corresponding SDB article for details)
  • fixed problems with stability of nfs over tcp
  • add ability to set ip-fragment timeout value per route (better safety for NFS over UDP)
  • added various jfs fixes
  • IPC calls reads are now reading the correct buffer length back after a write succeeded.
  • better support for matrox dualhead cards, correct mirroring
  • update in acenic driver
  • fix 'lvm-mpd' panic
  • fix the GLIBC test-fenv testcase
  • eject function for iSeries viotape driver (#23736) LTC2020
  • read lost boot hints for PReP boot loader
  • fix machine check handler path to close a timing window.
  • release semaphore on error path in viotape
  • improve reset button support for entering KDB
  • add iSeries DABR interface; add parens for PAGE defines
  • fix endian bug in multicast group handling
  • fix dead veth on iSeries when power down remote partition
  • fix hang on iSeries virtual CD (dvd-ram)
  • performance improvement for iSeries virtual CD
  • various minor bugfixes

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 by using this command:
rpm -Uvh kernel-source.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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