SUSE Security Announcement: Linux kernel (SUSE-SA:2010:031)
Posted on: 07/20/2010 07:21 PM

A Kernel update is available for openSUSE 11.1 and SUSE Linux Enterprise 11

______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2010:031
Date: Tue, 20 Jul 2010 11:00:00 +0000
Affected Products: openSUSE 11.1
SUSE Linux Enterprise High Availability Extension 11
SUSE Linux Enterprise Desktop 11
SUSE Linux Enterprise Server 11
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
SUSE Default Package: yes
Cross-References: CVE-2009-1389, CVE-2009-4537, CVE-2010-1087
CVE-2010-1162, CVE-2010-1437, CVE-2010-1446
CVE-2010-1641, CVE-2010-1643

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

The SUSE Linux Enterprise 11 GA Kernel was updated to 2.6.27.48 fixing
various bugs and security issues.

CVE-2010-1641: The do_gfs2_set_flags function in fs/gfs2/file.c in the
Linux kernel does not verify the ownership of a file, which allows
local users to bypass intended access restrictions via a SETFLAGS
ioctl request.

CVE-2010-1087: The nfs_wait_on_request function in fs/nfs/pagelist.c in
the Linux kernel allows attackers to cause a denial of service (Oops)
via unknown vectors related to truncating a file and an operation
that is not interruptible.

CVE-2010-1643: mm/shmem.c in the Linux kernel, when strict overcommit
is enabled, does not properly handle the export of shmemfs objects
by knfsd, which allows attackers to cause a denial of service (NULL
pointer dereference and knfsd crash) or possibly have unspecified
other impact via unknown vectors.

CVE-2010-1437: Race condition in the find_keyring_by_name function
in security/keys/keyring.c in the Linux kernel allows local users
to cause a denial of service (memory corruption and system crash)
or possibly have unspecified other impact via keyctl session commands
that trigger access to a dead keyring that is undergoing deletion by
the key_cleanup function.

CVE-2010-1446: arch/1/mm/fsl_booke_mmu.c in KGDB in the Linux kernel,
when running on PowerPC, does not properly perform a security check
for access to a kernel page, which allows local users to overwrite
arbitrary kernel memory, related to Fsl booke.

CVE-2010-1162: The release_one_tty function in drivers/char/tty_io.c in
the Linux kernel omits certain required calls to the put_pid function,
which has unspecified impact and local attack vectors.

CVE-2009-4537: drivers/net/r8169.c in the r8169 driver in the Linux
kernel does not properly check the size of an Ethernet frame that
exceeds the MTU, which allows remote attackers to (1) cause a denial
of service (temporary network outage) via a packet with a crafted size,
in conjunction with certain packets containing A characters and certain
packets containing E characters; or (2) cause a denial of service
(system crash) via a packet with a crafted size, in conjunction with
certain packets containing '0' characters, related to the value of the
status register and erroneous behavior associated with the RxMaxSize
register. NOTE: this vulnerability exists because of an incorrect
fix for CVE-2009-1389. Code execution might be possible.

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.


x86 Platform:

openSUSE 11.1:
http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-base-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-extra-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-base-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-extra-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-base-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-extra-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-source-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-syms-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-base-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-extra-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-vanilla-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-base-2.6.27.48-0.1.1.i586.rpm
http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-extra-2.6.27.48-0.1.1.i586.rpm

Platform Independent:

openSUSE 11.1:
http://download.opensuse.org/update/11.1/rpm/noarch/kernel-docs-2.6.3-3.13.109.noarch.rpm

Power PC Platform:

openSUSE 11.1:
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-base-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-extra-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-kdump-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-base-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-extra-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ps3-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-source-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-syms-2.6.27.48-0.1.1.ppc.rpm
http://download.opensuse.org/update/11.1/rpm/ppc/kernel-vanilla-2.6.27.48-0.1.1.ppc.rpm

x86-64 Platform:

openSUSE 11.1:
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-base-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-extra-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-base-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-extra-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-source-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-syms-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-base-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-extra-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-vanilla-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-base-2.6.27.48-0.1.1.x86_64.rpm
http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-extra-2.6.27.48-0.1.1.x86_64.rpm

Sources:

openSUSE 11.1:
http://download.opensuse.org/update/11.1/rpm/src/kernel-debug-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-default-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-docs-2.6.3-3.13.109.src.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-kdump-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-pae-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-ppc64-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-ps3-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-source-2.6.27.48-0.1.1.src.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-syms-2.6.27.48-0.1.1.src.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-trace-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-vanilla-2.6.27.48-0.1.1.nosrc.rpm
http://download.opensuse.org/update/11.1/rpm/src/kernel-xen-2.6.27.48-0.1.1.nosrc.rpm

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

SLE 11 SERVER Unsupported Extras
http://download.novell.com/patch/finder/?keywords=7c255bf89525f242ab9deddcf14e6517
http://download.novell.com/patch/finder/?keywords=34efb3de15e5405c1817c287028a50e3
http://download.novell.com/patch/finder/?keywords=6a5b519e1125164aefd647adb31ccec8
http://download.novell.com/patch/finder/?keywords=3c314aa8e3d1c4878e06108d767c18da
http://download.novell.com/patch/finder/?keywords=1a1e84bdf877ca5c38ecac3616374922

SUSE Linux Enterprise Server 11
http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4eebf91dd
http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c23098f9
http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4850a09
http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

SUSE Linux Enterprise Desktop 11
http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

SUSE Linux Enterprise High Availability Extension 11
http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4eebf91dd
http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c23098f9
http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4850a09
http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

______________________________________________________________________________

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.



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