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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2010:044
Date: Thu, 23 Sep 2010 15:00:00 +0000
Affected Products: SLE SDK 10 SP3
SUSE Linux Enterprise Desktop 10 SP3
SUSE Linux Enterprise Server 10 SP3
Vulnerability Type: local privilege escalation
CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
SUSE Default Package: yes
Cross-References: CVE-2010-2955, CVE-2010-3078, CVE-2010-3081
CVE-2010-3297
Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security problems
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
This kernel update for the SUSE Linux Enterprise 10 SP3 kernel fixes
several critical security issues.
Following security issues were fixed:
CVE-2010-3081: Incorrect buffer handling in the biarch-compat buffer
handling could be used by local attackers to gain root privileges. This
problem affects foremost x86_64, or potentially other biarch platforms,
like PowerPC and S390x.
CVE-2010-2955: A kernel information leak via the WEXT ioctl was fixed.
CVE-2010-3078: A kernel information leak via the XFS filesystem
was fixed.
CVE-2010-3297: A kernel information leak in the net eql code was fixed.
Additionally a non-security bug regarding data corruption bug in s390
was fixed:
A race between /proc/pid/stat and fork in the S390 kernel could lead
to data corruption.
The SUSE Linux Enterprise 10 SP 3 kernel is not affected by the issue in
CVE-2010-3301, as the bad change was only introduced in the 2.6.27 kernel.
The SUSE Linux Enterprise 10 SP 3 kernel is not affected by the issue in
CVE-2010-2959, as the "can_bcm" module was only introduced in 2.6.25
kernel.
No other bugs were fixed by 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 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 Desktop 10 SP3 for AMD64 and Intel EM64T
http://download.novell.com/patch/finder/?keywords=b1e006fd7d91b808f69f71171d...
SUSE Linux Enterprise Server 10 SP3
http://download.novell.com/patch/finder/?keywords=1d8b621f48289c999d25f93705...
http://download.novell.com/patch/finder/?keywords=2145dc686948891d0125c2ad5f...
http://download.novell.com/patch/finder/?keywords=b1e006fd7d91b808f69f71171d...
http://download.novell.com/patch/finder/?keywords=9fc4a77a3b1564fa574d7a17f3...
http://download.novell.com/patch/finder/?keywords=d66f802cf2fe007b89049126e4...
SLE SDK 10 SP3
http://download.novell.com/patch/finder/?keywords=1d8b621f48289c999d25f93705...
http://download.novell.com/patch/finder/?keywords=2145dc686948891d0125c2ad5f...
http://download.novell.com/patch/finder/?keywords=b1e006fd7d91b808f69f71171d...
http://download.novell.com/patch/finder/?keywords=9fc4a77a3b1564fa574d7a17f3...
http://download.novell.com/patch/finder/?keywords=d66f802cf2fe007b89049126e4...
SUSE Linux Enterprise Desktop 10 SP3
http://download.novell.com/patch/finder/?keywords=b1e006fd7d91b808f69f71171d...
http://download.novell.com/patch/finder/?keywords=d66f802cf2fe007b89049126e4...
SUSE Linux Enterprise Desktop 10 SP3 for x86
http://download.novell.com/patch/finder/?keywords=d66f802cf2fe007b89049126e4...
______________________________________________________________________________
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 <file>
replacing <file> with the name of the file where you saved the
announcement. The output for a valid signature looks like:
gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "
where <DATE> 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
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