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Security update for Linux kernel

Knowledgebase

(Last modified: 22MAR2005)


solutions Security update for Linux kernel SuSE Linux Maintenance Web (c643da5f2818ac7452d602b15588f117)

Applies to

Package: k_athlon
k_deflt
k_psmp
k_smp
k_debug
kernel-source
Product(s): SUSE LINUX Retail Solution 8
SuSE Linux School Server for i386
SuSE Linux Standard Server 8
SuSE Linux Enterprise Server 8 for x86
SuSE Linux Openexchange Server 4
Patch: patch-9969
Release: 20050322
Obsoletes: a119095a26a882ce898e6ee8dd3518c1

Indications

Everyone using the Linux Kernel on x86 architecture should update.

Contraindications

None.

Problem description

This update fixes following security bugs:
  • CAN-2005-0136: Fixed a local denial of service problem on ia64 which was possible to trigger by using the ptrace system call.
  • It was possible to deadlock the NFS lockd by special multi client access patterns.
  • Missing checking in the epoll system calls allowed overwriting of a small range of kernel memory.
Additionally following bugs were fixed:
  • ppc: SA_ONESHOT signals are handled correctly now.
  • Fixed bad checks for ipv6_add_addr() return values which lead to crashes.
  • Fixed an assertion failure in do_get_write_access().

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.*.i586.rpm for the default kernel image, or
  • rpm -Fhv k_athlon-2.4.*.i586.rpm for the AMD Athlon optimized kernel image, or
  • rpm -Fhv k_smp-2.4.*.i586.rpm for the SMP kernel image, or
  • rpm -Fhv k_psmp-2.4.*.i586.rpm for the PSMP kernel image
Please do only install one of these kernels, not all of them.
In case you are using LILO as bootmanager, please make sure that you also execute the command
lilo
after installing the update for the system to remain bootable.
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

Download Source Packages

Download the source code of the patches for maintained products.


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