Operating System:

[SUSE]

Published:

16 December 2009

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2009.1645
        SUSE Security Announcement: Linux Kernel (SUSE-SA:2009:061)
                             16 December 2009

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Denial of Service               -- Existing Account      
                   Modify Arbitrary Files          -- Existing Account      
                   Access Privileged Data          -- Existing Account      
                   Increased Privileges            -- Existing Account      
                   Reduced Security                -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-4021 CVE-2009-4005 CVE-2009-3939
                   CVE-2009-3889 CVE-2009-3726 CVE-2009-3621
                   CVE-2009-3620 CVE-2009-3612 CVE-2009-3080
                   CVE-2009-2903 CVE-2005-4881 

Reference:         ESB-2009.1643
                   ESB-2009.1588
                   ESB-2009.1581
                   ESB-2009.1535

Original Bulletin: 
   http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html

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______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2009:061
Date: Mon, 14 Dec 2009 18:00:00 +0000
Affected Products: SLE SDK 10 SP3
SUSE Linux Enterprise Desktop 10 SP3
SUSE Linux Enterprise 10 SP3 DEBUGINFO
SUSE Linux Enterprise Server 10 SP3
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.8 (HIGH)
SUSE Default Package: yes
Cross-References: CVE-2005-4881, CVE-2009-2903, CVE-2009-3080
CVE-2009-3612, CVE-2009-3620, CVE-2009-3621
CVE-2009-3726, CVE-2009-3889, CVE-2009-3939
CVE-2009-4005, CVE-2009-4021

Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security issues
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 fixes various bugs and some security issues in the SUSE
Linux Enterprise 10 SP 3 kernel.

Following security issues were fixed:
CVE-2009-3939: A sysctl variable of the megaraid_sas driver was
world writable, allowing local users to cause a denial of service or
potential code execution.
CVSS v2 Base Score: 6.6 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:C/A:C)


CVE-2009-3889: The dbg_lvl file for the megaraid_sas driver in the
Linux kernel before 2.6.27 has world-writable permissions, which
allows local users to change the (1) behavior and (2) logging level
of the driver by modifying this file.
This was already fine in SLES 10 SP3 GA due to a driver update of the
megaraid_sas driver and is just listed for completeness here.
CVSS v2 Base Score: 4.6 (MEDIUM) (AV:L/AC:L/Au:N/C:P/I:P/A:P)


CVE-2009-4005: The collect_rx_frame function in
drivers/isdn/hisax/hfc_usb.c in the Linux kernel before 2.6.32-rc7
allows attackers to have an unspecified impact via a crafted HDLC
packet that arrives over ISDN and triggers a buffer under-read.
This requires the attacker to be able to send ISDN low level frames
to the host.
CVSS v2 Base Score: 7.2 (HIGH) (AV:L/AC:L/Au:N/C:C/I:C/A:C)


CVE-2009-3080: A negative offset in a ioctl in the GDTH RAID driver
was fixed.
CVSS v2 Base Score: 7.2 (HIGH) (AV:L/AC:L/Au:N/C:C/I:C/A:C)


CVE-2009-4021: The fuse_direct_io function in fs/fuse/file.c in the
fuse subsystem in the Linux kernel might allow attackers to cause a
denial of service (invalid pointer dereference and OOPS) via vectors
possibly related to a memory-consumption attack.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)


CVE-2009-2903: Memory leak in the AppleTalk subsystem in the Linux
kernel when the AppleTalk and ipddp modules are loaded but the ipddp"N"
device is not found, allows remote attackers to cause a denial of
service (memory consumption) via IP-DDP datagrams.
CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C)


CVE-2009-3621: net/unix/af_unix.c in the Linux kernel allows local
users to cause a denial of service (system hang) by creating an
abstract-namespace AF_UNIX listening socket, performing a shutdown
operation on this socket, and then performing a series of connect
operations to this socket.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)


CVE-2009-3612 / CVE-2005-4881: The tcf_fill_node function in
net/sched/cls_api.c in the netlink subsystem in the Linux kernel 2.6.x
before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a
certain tcm__pad2 structure member, which might allow local users
to obtain sensitive information from kernel memory via unspecified
vectors. NOTE: this issue existed because of an incomplete fix for
CVE-2005-4881.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:C/I:N/A:N)


CVE-2009-3620: The ATI Rage 128 (aka r128) driver in the Linux
kernel does not properly verify Concurrent Command Engine (CCE)
state initialization, which allows local users to cause a denial of
service (NULL pointer dereference and system crash) or possibly gain
privileges via unspecified ioctl calls.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)


CVE-2009-3726: The nfs4_proc_lock function in fs/nfs/nfs4proc.c
in the NFSv4 client in the Linux kernel allows remote NFS servers
to cause a denial of service (NULL pointer dereference and panic)
by sending a certain response containing incorrect file attributes,
which trigger attempted use of an open file that lacks NFSv4 state.
CVSS v2 Base Score: 7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C)

The rio and sx serial multi port card drivers were disabled via a
modprobe blacklist due to severe bugs.

For a full list of changes, please read 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 this 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 Desktop 10 SP3 for AMD64 and Intel EM64T

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1f3d0df322cdf35f54c2baec92610fa0

SUSE Linux Enterprise 10 SP3 DEBUGINFO for IBM zSeries 64bit

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=977d4efa1cdb27c85e4ac229d6dad143

SUSE Linux Enterprise 10 SP3 DEBUGINFO for IBM POWER

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a69123b02b828a25e53eddc0924dce6

SUSE Linux Enterprise 10 SP3 DEBUGINFO for IPF

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1ed123b7a03b2d98587c4ac69fd24e41

SUSE Linux Enterprise Server 10 SP3

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1f3d0df322cdf35f54c2baec92610fa0

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=977d4efa1cdb27c85e4ac229d6dad143

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a69123b02b828a25e53eddc0924dce6

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1ed123b7a03b2d98587c4ac69fd24e41

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a612881db49bcc0dd76d517d881465e

SLE SDK 10 SP3

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1f3d0df322cdf35f54c2baec92610fa0

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a69123b02b828a25e53eddc0924dce6

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1ed123b7a03b2d98587c4ac69fd24e41

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a612881db49bcc0dd76d517d881465e

SUSE Linux Enterprise 10 SP3 DEBUGINFO

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1f3d0df322cdf35f54c2baec92610fa0

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a69123b02b828a25e53eddc0924dce6

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1ed123b7a03b2d98587c4ac69fd24e41

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a612881db49bcc0dd76d517d881465e

SUSE Linux Enterprise Desktop 10 SP3

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=1f3d0df322cdf35f54c2baec92610fa0

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a612881db49bcc0dd76d517d881465e

SUSE Linux Enterprise Desktop 10 SP3 for x86

http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=7a612881db49bcc0dd76d517d881465e

______________________________________________________________________________

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.

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