Mailinglist Archive: opensuse-security-announce (7 mails)

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[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:2008:057)
  • From: Marcus Meissner <meissner@xxxxxxx>
  • Date: Thu, 04 Dec 2008 18:25:26 +0100
  • Message-id: <49381286.FHl4Ap4B2E1Y7n0x%meissner@xxxxxxx>

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______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2008:057
Date: Thu, 04 Dec 2008 15:00:00 +0000
Affected Products: SUSE SLES 9
Novell Linux Desktop 9
Novell Linux POS 9
Vulnerability Type: denial of service
Severity (1-10): 6
SUSE Default Package: yes
Cross-References: CVE-2008-3528, CVE-2008-4210, CVE-2008-4395
CVE-2008-5029

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

This update of the Linux kernel for SUSE Linux Enterprise Server 9
SP4 contains various bugfixes and some security fixes.

The following security bugs have been fixed:

CVE-2008-4210: fs/open.c in the Linux kernel before 2.6.22 does not
properly strip setuid and setgid bits when there is a write to a
file, which allows local users to gain the privileges of a different
group, and obtain sensitive information or possibly have unspecified
other impact, by creating an executable file in a setgid directory
through the (1) truncate or (2) ftruncate function in conjunction
with memory-mapped I/O.

CVE-2008-3528: The ext[234] filesystem code fails to properly handle
corrupted data structures. With a mounted filesystem image or partition
that have corrupted dir->i_size and dir->i_blocks, a user performing
either a read or write operation on the mounted image or partition
can lead to a possible denial of service by spamming the logfile.

CVE-2008-5029: The __scm_destroy function in net/core/scm.c in the
Linux kernel 2.6.27.4, 2.6.26, and earlier makes indirect recursive
calls to itself through calls to the fput function, which allows
local users to cause a denial of service (panic) via vectors related
to sending an SCM_RIGHTS message through a UNIX domain socket and
closing file descriptors.

CVE-2008-4395: The ndiswrapper kernel module was updated to fix
multiple buffer overflows that can be exploited over a connected WLAN
by using long ESSID strings.

An update for the drbd kernel module is also included fixing
non-security bugs. Please also install the drbd user-space maintenance
update.

For the normal bugfixes please review the RPM changelog.

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 CORE 9 for AMD64 and Intel EM64T

http://download.novell.com/index.jsp?search=Search&keywords=608eb280879da5fdecef488bd7784dfb

SUSE CORE 9 for IBM S/390 31bit

http://download.novell.com/index.jsp?search=Search&keywords=159b6d8d14eb391abf36d4914d6b1a81

SUSE CORE 9 for IBM zSeries 64bit

http://download.novell.com/index.jsp?search=Search&keywords=af534e16e1946a0401b765acfb9c0ec2

SUSE CORE 9 for IBM POWER

http://download.novell.com/index.jsp?search=Search&keywords=17e72f16c45f57d18ec6999ea4a0c696

SUSE CORE 9 for Itanium Processor Family

http://download.novell.com/index.jsp?search=Search&keywords=ee9eda96ad81ff11df1777fff94f8834

Novell Linux POS 9

http://download.novell.com/index.jsp?search=Search&keywords=f8452f8de5562ed0c0c9d5b8aab02197

SUSE SLES 9

http://download.novell.com/index.jsp?search=Search&keywords=608eb280879da5fdecef488bd7784dfb

http://download.novell.com/index.jsp?search=Search&keywords=159b6d8d14eb391abf36d4914d6b1a81

http://download.novell.com/index.jsp?search=Search&keywords=af534e16e1946a0401b765acfb9c0ec2

http://download.novell.com/index.jsp?search=Search&keywords=17e72f16c45f57d18ec6999ea4a0c696

http://download.novell.com/index.jsp?search=Search&keywords=ee9eda96ad81ff11df1777fff94f8834

http://download.novell.com/index.jsp?search=Search&keywords=f8452f8de5562ed0c0c9d5b8aab02197

SUSE CORE 9 for x86

http://download.novell.com/index.jsp?search=Search&keywords=f8452f8de5562ed0c0c9d5b8aab02197

Novell Linux Desktop 9

http://download.novell.com/index.jsp?search=Search&keywords=7cafba4000c518586bc1b78e580e6295

Novell Linux Desktop 9 for x86_64

http://download.novell.com/index.jsp?search=Search&keywords=7cafba4000c518586bc1b78e580e6295

______________________________________________________________________________

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@xxxxxxx>"

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@xxxxxxx 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@xxxxxxxxxxxx
- 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@xxxxxxxxxxxx>.

opensuse-security-announce@xxxxxxxxxxxx
- 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@xxxxxxxxxxxx>.

=====================================================================
SUSE's security contact is <security@xxxxxxxx> or <security@xxxxxxx>.
The <security@xxxxxxx> 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@xxxxxxx>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@xxxxxxx>

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