A kernel update is available for SUSE Linux Enterprise



[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:2010:040)

______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2010:040
Date: Mon, 13 Sep 2010 15:00:00 +0000
Affected Products: SUSE Linux Enterprise High Availability Extension 11 SP1
SUSE Linux Enterprise Desktop 11 SP1
SUSE Linux Enterprise Server 11 SP1
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
SUSE Default Package: yes
Cross-References: CVE-2010-2478, CVE-2010-2521, CVE-2010-2524
CVE-2010-2537, CVE-2010-2538, CVE-2010-2798
CVE-2010-2803, CVE-2010-2942, CVE-2010-2946
CVE-2010-2959, CVE-2010-3015

Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security update
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
none
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

This SUSE Linux Enterprise 11 Service Pack 1 kernel update contains
various security fixes and lots of other bugfixes.

Notable larger bugfixes and changes:
- 603464: Fix system freeze when doing a network crash dump with a
netxen_nic driver
- 610828: Avoid kernel failure on connects/disconnects to a novell
server with Novell Client 2.0
- 612009: Fix Oracle issues due to problems with OCFS
- 614332: Fix SMB processes stuck in interruptible sleep when using
(LVS/ClusteredIP) + CTDB + OCFS2
- 619525: Fix igb driver regression
- 626321: Add patch for Apparent OCFS2 corruption after removing a
bunch of reflinks
- 627518: Avoid System hangs up after failed to copy files from
smb server
- 629552: Skip Tape rewind during boot or a scsi scan

Following security issues were fixed:
CVE-2010-2478: insufficient range checks on the ETHTOOL_GRXCLSRLALL
command allowed local users to at least crash the kernel

CVE-2010-2521: Specially crafted NFS write requests could crash
the kernel.

CVE-2010-2524: a malicious local user could fill the cache used by
CIFS do perform dns lookups with chosen data, therefore tricking the
kernel into mounting a wrong CIFS server.

CVE-2010-2537: a local user could overwrite append-only files on a
btrfs file system

CVE-2010-2538: a local user could read kernel memory of a btrfs
file system

CVE-2010-2798: local users could trigger a NULL dereference via gfs2
file system

CVE-2010-2803: driver specific drm ioctl could leak kernel memory to
users with access to dri devices

CVE-2010-2942: 'tc dump' could leak some kernel memory

CVE-2010-2946: the 'os2' xattr namespace could be used to bypass
xattr namespace rules

CVE-2010-2959: integer overflows in the CAN subsystem allowed attackers
to crash the kernel or gain privileges

CVE-2010-3015: certain write operations on an ext4 filesystem could
crash the kernel

2) Solution or Work-Around

There is no known workaround, please install the update packages.

3) Special Instructions and Notes

Please reboot the machine after installing the update.

4) Package Location and Checksums

The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command

rpm -Fhv

to apply the update, replacing with the filename of the
downloaded RPM package.

Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:

SUSE Linux Enterprise Server 11 SP1
http://download.novell.com/patch/finder/?keywords=70608756570f270952a30400f0f97a67
http://download.novell.com/patch/finder/?keywords=ff70db7653be66560fa26573ef04bc05
http://download.novell.com/patch/finder/?keywords=9343885edda5fa87713dfe0432ee1dde
http://download.novell.com/patch/finder/?keywords=a28f8d8e1ce77f22744f2d703cc04134
http://download.novell.com/patch/finder/?keywords=e2f6c6cc02f7dc05554cab87c9f88650

SUSE Linux Enterprise Desktop 11 SP1
http://download.novell.com/patch/finder/?keywords=70608756570f270952a30400f0f97a67
http://download.novell.com/patch/finder/?keywords=e2f6c6cc02f7dc05554cab87c9f88650

SUSE Linux Enterprise High Availability Extension 11 SP1
http://download.novell.com/patch/finder/?keywords=70608756570f270952a30400f0f97a67
http://download.novell.com/patch/finder/?keywords=ff70db7653be66560fa26573ef04bc05
http://download.novell.com/patch/finder/?keywords=9343885edda5fa87713dfe0432ee1dde
http://download.novell.com/patch/finder/?keywords=a28f8d8e1ce77f22744f2d703cc04134
http://download.novell.com/patch/finder/?keywords=e2f6c6cc02f7dc05554cab87c9f88650

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

See SUSE Security Summary Report.
______________________________________________________________________________

6) Authenticity Verification and Additional Information

- Announcement authenticity verification:

SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.

To verify the signature of the announcement, save it as text into a file
and run the command

gpg --verify

replacing with the name of the file where you saved the
announcement. The output for a valid signature looks like:

gpg: Signature made using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "

where is replaced by the date the document was signed.

If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command

gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

- Package authenticity verification:

SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and the integrity of
a package needs to be verified to ensure that it has not been tampered
with.

The internal rpm package signatures provide an easy way to verify the
authenticity of an RPM package. Use the command

rpm -v --checksig

to verify the signature of the package, replacing with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.

This key is automatically imported into the RPM database (on
RPMv4-based distributions) and the gpg key ring of 'root' during
installation. You can also find it on the first installation CD and at
the end of this announcement.

- SUSE runs two security mailing lists to which any interested party may
subscribe:

opensuse-security@opensuse.org
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
.

opensuse-security-announce@opensuse.org
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
.