Security update for Linux kernel

Knowledgebase

(Last modified: 08NOV2006)

solutions Security update for Linux kernel SuSE Linux Maintenance Web (aabad90e230984722c9884260efe69ee)

Applies to

Package: k_deflt
kernel-source
Product(s): SuSE Linux Enterprise Server 8 for IBM zSeries
Patch: patch-11281
Release: 20061108
Obsoletes: a523f4d26f72bbbc2e3168eb07270400

Indications

Everyone using the Linux Kernel on s390x 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]

Fixes for S/390:

This update contains the following Code Drops from Developerworks: Patchcluster 36
- Problem-ID: 26014 qeth: stack trace with msg "inconsistent lock state"
- Problem-ID: 27706 kernel: user readable uninitialised kernel memory.
For further description of the named Problem-IDs, please look to http://www-128.ibm.com/developerworks/linux/linux390/june2003_recom mended.html

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 -Fvh k_deflt.rpm
zipl

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 IBM zSeries (s390x)

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

The Origin of this information may be internal or external to Novell. Novell makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Novell makes no explicit or implied claims to the validity of this information.

Any trademarks referenced in this document are the property of their respective owners. Consult your product manuals for complete trademark information.