Articles / SuSE: New kernel packages f...
SuSE: New kernel packages fix remote denial of service
This SUSE Linux Enterprise 11 Service Pack 1 kernel update brings the kernel to 2.6.32.13. The sctp_process_unk_param function in in the SCTP functionality allows remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data. Updated packages are available from download.opensuse.org.
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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2010:027
Date: Fri, 02 Jul 2010 08:00:00 +0000
Affected Products: SUSE Linux Enterprise Desktop 11 SP1
SUSE Linux Enterprise Server 11 SP1
SUSE Linux Enterprise High Availability Extension 11 SP1
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C)
SUSE Default Package: yes
Cross-References: CVE-2010-1173
Content of This Advisory:
1) Security Vulnerability Resolved:
Kernel security and bugfix 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
This SUSE Linux Enterprise 11 Service Pack 1 kernel update brings
the kernel to 2.6.32.13. It also contains a security fix and lots of
other bugfixes.
Following security issues were fixed:
CVE-2010-1173: The sctp_process_unk_param function in
net/sctp/sm_make_chunk.c when SCTP is enabled, allows remote attackers
to cause a denial of service (system crash) via an SCTPChunkInit
packet containing multiple invalid parameters that require a large
amount of error data.
The update from 2.6.32.12 to 2.6.32.13 might also have contained
smaller security fixes.
The RPM version of this update is 2.6.32.13-0.4.1.
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 <file.rpm>
to apply the update, replacing <file.rpm> 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=6d234b253abdbb9f30537479384ed1bd
http://download.novell.com/patch/finder/?keywords=0e4cb330aea8c4851b064f19e6d4e99c
http://download.novell.com/patch/finder/?keywords=329cdfcfbddc09b14ba9975bbf6d87e8
http://download.novell.com/patch/finder/?keywords=d8e7470ce034188e261ccb5e82b64416
http://download.novell.com/patch/finder/?keywords=22846882965710e8a968106e5fa9b938
SUSE Linux Enterprise Desktop 11 SP1
http://download.novell.com/patch/finder/?keywords=6d234b253abdbb9f30537479384ed1bd
http://download.novell.com/patch/finder/?keywords=22846882965710e8a968106e5fa9b938
SUSE Linux Enterprise High Availability Extension 11 SP1
http://download.novell.com/patch/finder/?keywords=6d234b253abdbb9f30537479384ed1bd
http://download.novell.com/patch/finder/?keywords=0e4cb330aea8c4851b064f19e6d4e99c
http://download.novell.com/patch/finder/?keywords=329cdfcfbddc09b14ba9975bbf6d87e8
http://download.novell.com/patch/finder/?keywords=d8e7470ce034188e261ccb5e82b64416
http://download.novell.com/patch/finder/?keywords=22846882965710e8a968106e5fa9b938
______________________________________________________________________________
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 <security@suse.de>"
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 <file.rpm>
to verify the signature of the package, replacing <file.rpm> 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+subscribe@opensuse.org>.
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
<opensuse-security-announce+subscribe@opensuse.org>.
=====================================================================
SUSE's security contact is <security@suse.com> or <security@suse.de>.
The <security@suse.de> 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 <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>
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