SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2009:046
Date: Fri, 28 Aug 2009 11:00:00 +0000
Affected Products: SUSE SLES 9
Novell Linux Desktop 9
Open Enterprise Server
Novell Linux POS 9
SLE SDK 10 SP2
SUSE Linux Enterprise Desktop 10 SP2
SUSE Linux Enterprise 10 SP2 DEBUGINFO
SUSE Linux Enterprise Server 10 SP2
Vulnerability Type: local privilege escalation
Severity (1-10): 7
SUSE Default Package: yes
Cross-References: CVE-2009-2698

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:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

A single critical security issues was fixed in the SUSE Linux
Enterprise 9 and 10 kernels, which allowed local users to gain root
privileges.

The issue is tracked by CVE-2009-2698 and is a missing check in the
MSG_PROBE socket handling of IPv4 and IPv6 sockets.

This bug was fixed in the 2.6.18 upstream kernel but was not deemed
security relevant at that time. This means that SUSE Linux Enterprise
11 products and openSUSE products are not affected.

We wish to thank Tavis Ormandy, who pointed out that this problem is
yet another NULL page code execution problem.

No other bugs were fixed in this update.

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 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 Desktop 10 SP2 for AMD64 and Intel EM64T
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=a2950cb6b0b0a9aa147011687fdd8fdf

Novell Linux Desktop 9 for x86_64
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=03956d7519e6e0afe7667486e2c01955

SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM zSeries 64bit
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=afe4f4805f41865ffa04503ce7f8cd5e

SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM POWER
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bc784a44a781d3f28836d000eaea4def

SUSE Linux Enterprise 10 SP2 DEBUGINFO for IPF
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=da43f9c6c2a8fe28a694a85f23a14f58

SUSE Linux Enterprise Server 10 SP2
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=a2950cb6b0b0a9aa147011687fdd8fdf
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=afe4f4805f41865ffa04503ce7f8cd5e
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bc784a44a781d3f28836d000eaea4def
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=da43f9c6c2a8fe28a694a85f23a14f58
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bf857e9123b7b3c1789cc3e7d1780854

SLE SDK 10 SP2
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=a2950cb6b0b0a9aa147011687fdd8fdf
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bc784a44a781d3f28836d000eaea4def
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=da43f9c6c2a8fe28a694a85f23a14f58
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bf857e9123b7b3c1789cc3e7d1780854

SUSE Linux Enterprise 10 SP2 DEBUGINFO
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=a2950cb6b0b0a9aa147011687fdd8fdf
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bc784a44a781d3f28836d000eaea4def
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=da43f9c6c2a8fe28a694a85f23a14f58
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bf857e9123b7b3c1789cc3e7d1780854

SUSE Linux Enterprise Desktop 10 SP2
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=a2950cb6b0b0a9aa147011687fdd8fdf
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bf857e9123b7b3c1789cc3e7d1780854

SUSE Linux Enterprise Desktop 10 SP2 for x86
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=bf857e9123b7b3c1789cc3e7d1780854

SUSE CORE 9 for AMD64 and Intel EM64T
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=23075fdb753a73d1780a3004b9b7fca5

SUSE CORE 9 for IBM zSeries 64bit
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=d063f1bcc5b71a074a58bf7132bb8eb5

SUSE CORE 9 for IBM S/390 31bit
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f070d6bd439f3d1847adcd7acb4805c7

Open Enterprise Server
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f0c542684ce5d10930754fcab1e40947
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=d81479506ec313bba8ed9502d47553d1

Novell Linux Desktop 9
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=03956d7519e6e0afe7667486e2c01955
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=d81479506ec313bba8ed9502d47553d1

Novell Linux Desktop 9 for x86
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=d81479506ec313bba8ed9502d47553d1

SUSE CORE 9 for IBM POWER
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=79ef08ffce3f7d36bd9fd53abcb0ee3e

SUSE CORE 9 for Itanium Processor Family
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=19b7f44ba0b74dd47aefb66d029aee22

Novell Linux POS 9
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f3cf1d681af46868ff53e2759abdd656

SUSE SLES 9
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=23075fdb753a73d1780a3004b9b7fca5
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=d063f1bcc5b71a074a58bf7132bb8eb5
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f070d6bd439f3d1847adcd7acb4805c7
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=79ef08ffce3f7d36bd9fd53abcb0ee3e
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=19b7f44ba0b74dd47aefb66d029aee22
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f3cf1d681af46868ff53e2759abdd656

SUSE CORE 9 for x86
http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=f3cf1d681af46868ff53e2759abdd656

______________________________________________________________________________

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
.

=====================================================================
SUSE's security contact is or .
The public key is listed below.
=====================================================================
______________________________________________________________________________

The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular, the
clear text signature should show proof of the authenticity of the text.

SUSE Linux Products GmbH provides no warranties of any kind whatsoever
with respect to the information contained in this security advisory.

Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key