SUSE Security Announcement: Linux kernel (SUSE-SA:2007:029)
Posted on: 05/03/2007 07:10 PM

A security announcement from SUSE

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______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2007:029
Date: Thu, 03 May 2007 18:00:00 +0000
Affected Products: openSUSE 10.2
Vulnerability Type: remote denial of service
Severity (1-10): 7
SUSE Default Package: yes
Cross-References: CVE-2007-1000, CVE-2007-1357, CVE-2007-1388
CVE-2007-1592

Content of This Advisory:
1) Security Vulnerability Resolved:
kernel security update and bootloader fixes
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 openSUSE 10.2 fixes the following security problems:

- CVE-2007-1000 A NULL pointer dereference in the IPv6 sockopt handling
could potentially be used by local attackers to read
arbitrary kernel memory and thereby gain access to
private information.

- CVE-2007-1388 A NULL pointer dereference could be used by local attackers
to cause a Oops / crash of the machine.

- CVE-2007-1592 A possible double free in the IPv6/flowlabel handling was
fixed.

- CVE-2007-1357 A remote denial of service attack in the AppleTalk protocol
handler was fixed. This attack is only possible on the local
subnet, and requires the AppleTalk protocol module to be loaded
(which is not done by default).

This update also reenables the deprecated CONFIG_USB_DEVICEFS option
for legacy applications. It is not necessary to recompile the kernel
to use USB devices in VMWare and VirtualBox and other programs using
the old /proc/bus/usb interface.

You still need to mount /proc/bus/usb if required by doing:

mount -t usbfs none /proc/bus/usb

or configuring it in /etc/fstab. The programs included in openSUSE 10.2
do not require this legacy interface.

This update also includes a new perl-Bootloader package which fixes various
regressions in the boot menu generation during update of kernels.

Please note that boot entries will be named:
openSUSE 10.2 - Linux 2.6.18.5-0.2
now and that you can install multiple kernels in parallel.


The update also fixes the following non security bugs:

- patches.fixes/visor_write_race.patch:
fix race allowing overstepping memory limit in visor_write (Mainline: 2.6.21)
- patches.drivers/libata-ide-via-add-PCI-IDs:
via82cxxx/pata_via: backport PCI IDs (254158).
- libata: implement HDIO_GET_IDENTITY (255413).
- sata_sil24: Add Adaptec 1220SA PCI ID. (Mainline: 2.6.21)
- ide: backport hpt366 from devel tree (244502).
- mm: fix madvise infinite loop (248167).
- libata: hard reset on SERR_INTERNAL (241334).
- limited WPA support for prism54 (207944)
- jmicron: match class instead of function number (224784, 207707)
- ahci: RAID mode SATA patch for Intel ICH9M (Mainline: 2.6.21)
- libata: blacklist FUJITSU MHT2060BH for NCQ (Mainline: 2.6.21)
- libata: add missing PM callbacks. (Mainline: 2.6.20)
- patches.fixes/nfs-readdir-timestamp:
Set meaningful value for fattr->time_start in readdirplus
results. (244967).
- patches.fixes/usb_volito.patch:
wacom volito tablet not working (#248832).
- patches.fixes/965-fix: fix detection of aperture size versus
GTT size on G965 (#258013).
- patches.fixes/sbp2-MODE_SENSE-fix.diff: use proper MODE SENSE,
fixes recognition of device properties (261086)
- patches.fixes/ipt_CLUSTERIP_refcnt_fix:
ipv4/netfilter/ipt_CLUSTERIP.c - refcnt fix (238646)
- patches.fixes/reiserfs-fix-vs-13060.diff: reiserfs: fix
corruption with vs-13060 (257735).
- patches.drivers/ati-rs400_200-480-disable-msi: pci-quirks:
disable MSI on RS400-200 and RS480 (263893).
- patches.drivers/libata-ahci-ignore-interr-on-SB600: ahci.c:
workaround for SB600 SATA internal error issue (#264792).

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 the upgrade.

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.


x86 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-bigsmp-2.6.18.8-0.3.i586.rpm
95292ec575fcc2fb45a4967255b8b72f
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-default-2.6.18.8-0.3.i586.rpm
f29d3626caf1b971661556d9193fc816
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-source-2.6.18.8-0.3.i586.rpm
1bb4c4fabc32647ff6ffafc916081c50
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-syms-2.6.18.8-0.3.i586.rpm
b99077ba62db238a8e5df197ea9ea25c
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-xen-2.6.18.8-0.3.i586.rpm
34523268fc1b99b0fcb8addb77bf01d8
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-xenpae-2.6.18.8-0.3.i586.rpm
b9a57ed4f13196aa5b0a062cfc561a77
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/perl-Bootloader-0.4.14-1.2.i586.rpm
95714f4c6b647ef6c68e4d3caa033787

Power PC Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-default-2.6.18.8-0.3.ppc.rpm
2aa018a5edc8f3425ad196225eaf5bad
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-iseries64-2.6.18.8-0.3.ppc.rpm
260f74713bd8fba471202941f6114fa3
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-ppc64-2.6.18.8-0.3.ppc.rpm
cedf939124e52f93a86c25e9fdf0d250
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-source-2.6.18.8-0.3.ppc.rpm
ccc7c02e400fd55f1b132c2a2cedd192
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-syms-2.6.18.8-0.3.ppc.rpm
6b528a441cfa910d19794470f4cfc89a
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/perl-Bootloader-0.4.14-1.2.ppc.rpm
602bbcbfa115caf71ada49b583f85f28

x86-64 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-default-2.6.18.8-0.3.x86_64.rpm
0835bf763018e56be3db1625e91680dd
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-source-2.6.18.8-0.3.x86_64.rpm
05a41525a7f4db33fe871207a44a1fdf
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-syms-2.6.18.8-0.3.x86_64.rpm
8853551b4f1bd2f1f083176b307e0401
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-xen-2.6.18.8-0.3.x86_64.rpm
24dec86d61e5e5e78cc67df60f82a88e
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/perl-Bootloader-0.4.14-1.2.x86_64.rpm
e0706b2bbadccd4700238f1906cffb3d

Sources:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-bigsmp-2.6.18.8-0.3.nosrc.rpm
404e960620d51992b04758e94edfb7b5
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-default-2.6.18.8-0.3.nosrc.rpm
d99e2efc57a9035da836a1d47fd39dd8
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-iseries64-2.6.18.8-0.3.nosrc.rpm
4ca31984c81bdd27cdb5c161e154dc79
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-ppc64-2.6.18.8-0.3.nosrc.rpm
8e70951375a9abe704acc5627f97b33c
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-source-2.6.18.8-0.3.src.rpm
e0c9eeb1a788c977030a5dc629f6536c
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-syms-2.6.18.8-0.3.src.rpm
156bc97491b5281544d08dbaa1ab7355
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-xen-2.6.18.8-0.3.nosrc.rpm
b8496e19276c0c18856d55d4131d850a
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-xenpae-2.6.18.8-0.3.nosrc.rpm
b6207a927ed90bdbf8e87abdf6bcd586
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/perl-Bootloader-0.4.14-1.2.src.rpm
1e5a0f32e9d9a55ce846acf6399a6f7e

______________________________________________________________________________

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.

There are two verification methods that can be used independently from
each other to prove the authenticity of a downloaded file or RPM package:

1) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement

1) 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.

2) If you need an alternative means of verification, use the md5sum
command to verify the authenticity of the packages. Execute the command

md5sum <filename.rpm>

after you downloaded the file from a SUSE FTP server or its mirrors.
Then compare the resulting md5sum with the one that is listed in the
SUSE security announcement. Because the announcement containing the
checksums is cryptographically signed (by security@suse.de), the
checksums show proof of the authenticity of the package if the
signature of the announcement is valid. Note that the md5 sums
published in the SUSE Security Announcements are valid for the
respective packages only. Newer versions of these packages cannot be
verified.

- 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>.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<suse-security-announce-subscribe@suse.com>.

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