Security update for Linux kernel

Knowledgebase

(Last modified: 08NOV2006)

solutions Security update for Linux kernel SuSE Linux Maintenance Web (85e547a01d9aab2432eaa26b0163cda9)

Applies to

Package: k_deflt
k_itanium2-smp
k_itanium2
k_smp
kernel-source
k_page-64k
Product(s): SuSE Linux Enterprise Server 8 for IPF
Patch: patch-11285
Release: 20061108
Obsoletes: 6d74d9ddf80228eba4bbce4c1f9e38dd

Indications

Everyone using the Linux Kernel on ia64 architecture should update.

Contraindications

None.

Problem description

This kernel update fixes the following security problems:

CVE-2006-3468: Remote attackers able to access an NFS of a ext2 or ext3 filesystem can cause a denial of service (file system panic) via a crafted UDP packet with a V2 lookup procedure that specifies a bad file handle (inode number), which triggers an error and causes an exported directory to be remounted read-only. [#192988] [#216265]
CVE-2006-2935: A stackbased buffer overflow in CDROM / DVD handling was fixed which could be used by a physical local attacker to crash the kernel or execute code within kernel context, depending on presence of automatic DVD handling in the system. [#190396]
CVE-2006-2444: The snmp_trap_decode function in the SNMP NAT helper allows remote attackers to cause a denial of service (crash) via unspecified remote attack vectors that cause failures in snmp_trap_decode that trigger (1) frees of random memory or (2) frees of previously-freed memory (double-free) by snmp_trap_decode as well as its calling function, as demonstrated via certain test cases of the PROTOS SNMP test suite. [#177577]
If the IPX network protocol was active, it was possible to remotely crash the machine by special crafted IPX network packets [#197809].

and the following non security bugs:

Fix dumps with DUMP_LEVEL=2 [#93666] (LTC16184)
Fixed: Server crash with "__alloc_pages: 1-order allocation failed (gfp=0x1f0/0)" errors [#159193]

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 install by using the following command:

rpm -qf /boot/vmlinuz

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

rpm -Fvh k_deflt-*.rpm for the default kernel image, or
rpm -Fvh k_itanium2-smp-*.rpm for the Itanium2 SMP kernel image, or
rpm -Fhv k_itanium2.rpm-*.rpm for the Itanium2 kernel image, or
rpm -Fhv k_smp-*.rpm for the SMP 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 IPF (ia64)

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

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