MESSAGE
| DATE | 2010-12-14 |
| FROM | Ruben Safir
|
| SUBJECT | Subject: [NYLXS - HANGOUT] SUSE Security Announcement: Linux kernel (SUSE-SA:2010:060)
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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2010:060
Date: Tue, 14 Dec 2010 12:00:00 +0000
Affected Products: SLE SDK 10 SP3
SUSE Linux Enterprise Desktop 10 SP3
SUSE Linux Enterprise Server 10 SP3
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-2010-2226, CVE-2010-2248, CVE-2010-2942
CVE-2010-2946, CVE-2010-3067, CVE-2010-3086
CVE-2010-3310, CVE-2010-3437, CVE-2010-3442
CVE-2010-4072, CVE-2010-4073, CVE-2010-4078
CVE-2010-4080, CVE-2010-4081, CVE-2010-4083
CVE-2010-4157, CVE-2010-4158, CVE-2010-4162
CVE-2010-4164
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 kernel update for the SUSE Linux Enterprise 10 SP3 kernel fixes
several security issues and bugs.
Following security issues were fixed:
CVE-2010-3442: Multiple integer overflows in the snd_ctl_new
function in sound/core/control.c in the Linux kernel before
2.6.36-rc5-next-20100929 allow local users to cause a denial of
service (heap memory corruption) or possibly have unspecified
other impact via a crafted (1) SNDRV_CTL_IOCTL_ELEM_ADD or (2)
SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl call.
CVE-2010-3437: Integer signedness error in the pkt_find_dev_from_minor
function in drivers/block/pktcdvd.c in the Linux kernel before
2.6.36-rc6 allows local users to obtain sensitive information from
kernel memory or cause a denial of service (invalid pointer dereference
and system crash) via a crafted index value in a PKT_CTRL_CMD_STATUS
ioctl call.
CVE-2010-4078: Uninitialized stack memory disclosure in the
FBIOGET_VBLANK ioctl in the sis and ivtv drivers could leak kernel
memory to userspace.
CVE-2010-4080 / CVE-2010-4081: Uninitialized stack memory disclosure
in the rme9652 ALSA driver could leak kernel memory to userspace.
CVE-2010-4073 / CVE-2010-4072 / CVE-2010-4083: Uninitialized stack
memory disclosure in the SystemV IPC handling functions could leak
kernel memory to userspace.
CVE-2010-3067: Integer overflow in the do_io_submit function in
fs/aio.c in the Linux kernel allowed local users to cause a denial
of service or possibly have unspecified other impact via crafted use
of the io_submit system call.
CVE-2010-3310: Multiple integer signedness errors in net/rose/af_rose.c
in the Linux kernel allowed local users to cause a denial of service
(heap memory corruption) or possibly have unspecified other impact
via a rose_getname function call, related to the rose_bind and
rose_connect functions.
CVE-2010-2226: The xfs_swapext function in fs/xfs/xfs_dfrag.c in the
Linux kernel did not properly check the file descriptors passed to
the SWAPEXT ioctl, which allowed local users to leverage write access
and obtain read access by swapping one file into another file.
CVE-2010-2946: fs/jfs/xattr.c in the Linux kernel did not properly
handle a certain legacy format for storage of extended attributes,
which might have allowed local users by bypass intended xattr namespace
restrictions via an "os2." substring at the beginning of a name.
CVE-2010-2942: The actions implementation in the network queuing
functionality in the Linux kernel did not properly initialize
certain structure members when performing dump operations, which
allowed local users to obtain potentially sensitive information
from kernel memory via vectors related to (1) the tcf_gact_dump
function in net/sched/act_gact.c, (2) the tcf_mirred_dump
function in net/sched/act_mirred.c, (3) the tcf_nat_dump function
in net/sched/act_nat.c, (4) the tcf_simp_dump function in
net/sched/act_simple.c, and (5) the tcf_skbedit_dump function in
net/sched/act_skbedit.c.
CVE-2010-2248: fs/cifs/cifssmb.c in the CIFS implementation in the
Linux kernel allowed remote attackers to cause a denial of service
(panic) via an SMB response packet with an invalid CountHigh value,
as demonstrated by a response from an OS/2 server, related to the
CIFSSMBWrite and CIFSSMBWrite2 functions.
CVE-2010-4157: A 32bit vs 64bit integer mismatch in gdth_ioctl_alloc
could lead to memory corruption in the GDTH driver.
CVE-2010-4164: A remote (or local) attacker communicating over X.25
could cause a kernel panic by attempting to negotiate malformed
facilities.
CVE-2010-3086: A missing lock prefix in the x86 futex code could be
used by local attackers to cause a denial of service.
CVE-2010-4158: A memory information leak in Berkley packet filter
rules allowed local attackers to read uninitialized memory of the
kernel stack.
CVE-2010-4162: A local denial of service in the blockdevice layer
was fixed.
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" module or the "zypper" commandline tool. The package and
patch management stack will detect which updates are required and
automatically perform 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=674eb707cae3a31be66788e116641a9a
SUSE Linux Enterprise Server 10 SP3
http://download.novell.com/patch/finder/?keywords=674eb707cae3a31be66788e116641a9a
http://download.novell.com/patch/finder/?keywords=8bc9a9f71e0364816351d414eb3c9832
http://download.novell.com/patch/finder/?keywords=c12e832d9f0b5b30c9d4e408ab99b34d
http://download.novell.com/patch/finder/?keywords=7a6102f48e04658e517624d16e7806bc
http://download.novell.com/patch/finder/?keywords=2d433ce13217ec9e95c2b22bce28b8ed
SLE SDK 10 SP3
http://download.novell.com/patch/finder/?keywords=674eb707cae3a31be66788e116641a9a
http://download.novell.com/patch/finder/?keywords=c12e832d9f0b5b30c9d4e408ab99b34d
http://download.novell.com/patch/finder/?keywords=7a6102f48e04658e517624d16e7806bc
http://download.novell.com/patch/finder/?keywords=2d433ce13217ec9e95c2b22bce28b8ed
SUSE Linux Enterprise Desktop 10 SP3
http://download.novell.com/patch/finder/?keywords=674eb707cae3a31be66788e116641a9a
http://download.novell.com/patch/finder/?keywords=2d433ce13217ec9e95c2b22bce28b8ed
SUSE Linux Enterprise Desktop 10 SP3 for x86
http://download.novell.com/patch/finder/?keywords=2d433ce13217ec9e95c2b22bce28b8ed
______________________________________________________________________________
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-at-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-at-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-at-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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