SUSE Security Announcement: kernel various security and bugfixes (SUSE-SA:2005:067)
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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2005:067
Date: Tue, 06 Dec 2005 13:00:00 +0000
Affected Products: SUSE LINUX 10.0
Vulnerability Type: denial of service
Severity (1-10): 6
SUSE Default Package: yes
Cross-References: CVE-2005-2973, CVE-2005-3044, CVE-2005-3055
CVE-2005-3180, CVE-2005-3181, CVE-2005-3271
CVE-2005-3527, CVE-2005-3783, CVE-2005-3784
CVE-2005-3805, CVE-2005-3806, CVE-2005-3807
Content of This Advisory:
1) Security Vulnerability Resolved:
Various security fixes, bugfixes and a XEN 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 SUSE Linux 10.0 contains fixes for XEN, various
security fixes and bug fixes.
CVE-200n-nnnn numbers refer to Mitre CVE IDs (http://cve.mitre.org/).
This update includes a more recent snapshot of the upcoming XEN 3.0.
Many bugs have been fixed. Stability for x86_64 has been improved.
Stability has been improved for SMP, and now both i586 and x86_64
kernels are built with SMP support.
This update contains the following security fixes:
- CVE-2005-3783: A check in ptrace(2) handling that finds out if
a process is attaching to itself was incorrect and could be used
by a local attacker to crash the machine.
- CVE-2005-3784: A check in reaping of terminating child processes did
not consider ptrace(2) attached processes and would leave a ptrace
reference dangling. This could lead to a local user being able to
crash the machine.
- CVE-2005-3271: A task leak problem when releasing POSIX timers was
fixed. This could lead to local users causing a local denial of
service by exhausting system memory.
- CVE-2005-3805: A locking problem in POSIX timer handling could
be used by a local attacker on a SMP system to deadlock the machine.
- CVE-2005-3181: A problem in the Linux auditing code could lead
to a memory leak which finally could exhaust system memory of
a machine.
- CVE-2005-2973: An infinite loop in the IPv6 UDP loopback handling
can be easily triggered by a local user and lead to a denial
of service.
- CVE-2005-3806: A bug in IPv6 flow label handling code could be used
by a local attacker to free non-allocated memory and in turn corrupt
kernel memory and likely crash the machine.
- CVE-2005-3807: A memory kernel leak in VFS lease handling can
exhaust the machine memory and so cause a local denial of
service. This is seen in regular Samba use and could also be
triggered by local attackers.
- CVE-2005-3055: Unplugging an user space controlled USB device with
an URB pending in user space could crash the kernel. This can be
easily triggered by local attacker.
- CVE-2005-3180: Fixed incorrect padding in Orinoco wireless driver,
which could expose kernel data to the air.
- CVE-2005-3044: Missing sockfd_put() calls in routing_ioctl() leaked
file handles which in turn could exhaust system memory.
- CVE-2005-3527: A race condition in do_coredump in signal.c allows
local users to cause a denial of service (machine hang) by triggering
a core dump in one thread while another thread has a pending SIGSTOP.
Additionally the following non security bugs were fixed:
- Fix NFS cache consistency races which could lead to data corruption and
crashes.
- A kernel panic when loading the r8169 module without powermanagment
was fixed.
- i386: A race condition in the power management module powernow-k8
was fixed.
- Special ELF binaries without DATA and BSS segments could not be loaded
due to too strict kernel checks.
- Various bugs in the ALSA sound system were fixed.
- A problem in IPv6 initialization with IPv6 disabled by policy that could
leave dangling kernel pointers around was fixed.
- Added sis 965l support to the sis5513 ide driver.
- Disabled C2/C3 power management states on all IBM R40e BIOSes.
- Fixed machine crash when switching the io-scheduler away from CFQ.
- Call reboot notifiers of power off to switch off certain machines.
- AMD64: Don't use TSC for time keeping on AMD single socket dual core
systems.
- Fixed the "treason uncloaked" kernel messages that were caused by
a stale pred_flags variable when the TCP snd_wnd changes.
- USB floppy drive SAMSUNG SFD-321U/EP was detected 8 times.
- CONFIG_ACPI_HOTKEY is not supportable yet according to Intel, so we
disabled it.
- Disable ACPI on machines from before 2001 on all kernels again.
- USB: always export interface information for modalias.
- Various iSCSI fixes.
- Avoid a potential fs corruption on SMP systems.
- i386: Increased number of CONFIG_SERIAL_8250_NR_UARTS to 8.
- Fixed a data corruption in the MD device driver when the delayed
recovery is interrupted.
- ahci: Don't set SActive for non-NCQ commands. This could have left
the LED burning even for inactivity.
- ppc: Handle GCC 4 generated relocations for 32bit memory access
in the module loader.
- ppc: Removed a special case for ppc to use MAC from prom if CSR is
corrupt
- CIFS: Made cifsd (kernel daemon for the CIFS filesystem) suspend
aware.
- Fixed ACPI issues on an ASUS L5D.
- IDE: Worked around power management problems.
- Disable AMD TLB flush filter on i386/x86-64 (might help 3d drivers)
- Quiet down capacity reading from IDE CD when no media inserted.
- ACPI: Worked around undefined ZOO* objects on certain Acer Aspire
notebooks.
- ACPI: Fixed Oops on pcc_acpi unloading.
- ACPI: Fix hang in ACPI device scan on certain HP nx Laptops.
- Fixed a bug in ACL handling of tmpfs.
- Fix time going twice as fast problem on ATI Xpress chip sets.
2) Solution or Work-Around
None, please install the fixed packages.
3) Special Instructions and Notes
SPECIAL INSTALLATION INSTRUCTIONS
=================================
The following paragraphs guide you through the installation
process in a step-by-step fashion. The character sequence "****"
marks the beginning of a new paragraph. In some cases, the steps
outlined in a particular paragraph may or may not be applicable
to your situation. Therefore, make sure that you read through
all of the steps below before attempting any of these
procedures. All of the commands that need to be executed must be
run as the superuser 'root'. Each step relies on the steps
before it to complete successfully.
**** Step 1: Determine the needed kernel type.
Use the following command to determine which kind of kernel is
installed on your system:
rpm -qf --qf '%{name}\n' /boot/vmlinuz
**** Step 2: Download the packages for your system.
Download the kernel RPM package for your distribution with the
name indicated by Step 1. Starting from SUSE LINUX 9.2, kernel
modules that are not free were moved to a separate package with
the suffix '-nongpl' in its name. Download that package as well
if you rely on hardware that requires non-free drivers, such as
some ISDN adapters. The list of all kernel RPM packages is
appended below.
The kernel-source package does not contain a binary kernel in
bootable form. Instead, it contains the sources that correspond
with the binary kernel RPM packages. This package is required to
build third party add-on modules.
**** Step 3: Verify authenticity of the packages.
Verify the authenticity of the kernel RPM package using the
methods as listed in Section 6 of this SUSE Security
Announcement.
**** Step 4: Installing your kernel rpm package.
Install the rpm package that you have downloaded in Step 2 with
the command
rpm -Uhv <FILE>
replacing <FILE> with the filename of the RPM package
downloaded.
Warning: After performing this step, your system may not boot
unless the following steps have been followed
completely.
**** Step 5: Configuring and creating the initrd.
The initrd is a RAM disk that is loaded into the memory of your
system together with the kernel boot image by the boot loader.
The kernel uses the content of this RAM disk to execute commands
that must be run before the kernel can mount its root file
system. The initrd is typically used to load hard disk
controller drivers and file system modules. The variable
INITRD_MODULES in /etc/sysconfig/kernel determines which kernel
modules are loaded in the initrd.
After a new kernel rpm has been installed, the initrd must be
recreated to include the updated kernel modules. Usually this
happens automatically when installing the kernel rpm. If
creating the initrd fails for some reason, manually run the
command
/sbin/mkinitrd
**** Step 6: Update the boot loader, if necessary.
Depending on your software configuration, you either have the
LILO or GRUB boot loader installed and initialized on your
system. Use the command
grep LOADER_TYPE /etc/sysconfig/bootloader
to find out which boot loader is configured.
The GRUB boot loader does not require any further action after a
new kernel has been installed. You may proceed to the next step
if you are using GRUB.
If you use the LILO boot loader, lilo must be run to
reinitialize the boot sector of the hard disk. Usually this
happens automatically when installing the kernel RPM. In case
this step fails, run the command
/sbin/lilo
Warning: An improperly installed boot loader will render your
system unbootable.
**** Step 7: Reboot.
If all of the steps above have been successfully completed on
your system, the new kernel including the kernel modules and the
initrd are ready to boot. The system needs to be rebooted for
the changes to be active. Make sure that all steps have been
completed then reboot using the command
/sbin/shutdown -r now
Your system will now shut down and restart with the new kernel.
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:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/Intel-536ep-4.69-14.2.i586.rpm
02d032c2a4e43516e382faa1c38593ff
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-bigsmp-2.6.13-15.7.i586.rpm
16ebf82f7f0eb76a7e95239a7748bd49
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-bigsmp-nongpl-2.6.13-15.7.i586.rpm
5efbba52b5b452ee68770c234d1c4206
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-default-2.6.13-15.7.i586.rpm
201dd3f4f090b01034c2706860a2ded1
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-default-nongpl-2.6.13-15.7.i586.rpm
890a9500a671e62c872a316094c976fc
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-smp-2.6.13-15.7.i586.rpm
3824bd72e5e38f170a1f53cdf12b7936
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-smp-nongpl-2.6.13-15.7.i586.rpm
f1d4ca38c6f19b92a3ec2bdc4ee55ab7
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-source-2.6.13-15.7.i586.rpm
444382d73c4ea88144b58155032f3979
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-syms-2.6.13-15.7.i586.rpm
88ddaf01d3cdfc2a02f40c246f27a03f
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-um-2.6.13-15.7.i586.rpm
4a4282db387b1a50b7f0d8358811955c
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-um-nongpl-2.6.13-15.7.i586.rpm
fd64850adff5fc8fab2a807afc07bac0
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-xen-2.6.13-15.7.i586.rpm
ec1ccdf16b4c2eadd789871e5bda3361
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kernel-xen-nongpl-2.6.13-15.7.i586.rpm
ad5b17a6998f04832d29f189a5f42240
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/um-host-kernel-2.6.13-15.7.i586.rpm
1ed3738e413c0df9a131989560effb85
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-3.0_7608-2.1.i586.rpm
dafe91eab2d6fbe749693373a561609d
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-devel-3.0_7608-2.1.i586.rpm
8a20190de6fef952115623503b2149f9
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-doc-html-3.0_7608-2.1.i586.rpm
1c27687f9f9482c72fdf300c64d0db4f
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-doc-pdf-3.0_7608-2.1.i586.rpm
356c1d14e0873344b8789e6bf36b94e2
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-doc-ps-3.0_7608-2.1.i586.rpm
7b9066e6834db4b1eb5505d089830714
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-tools-3.0_7608-2.1.i586.rpm
43b7333eea6e0e52ce2cb9431a9d3627
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/xen-tools-ioemu-3.0_7608-2.1.i586.rpm
f8d51a8b0119ea984317cad976ca16d5
Power PC Platform:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kernel-default-2.6.13-15.7.ppc.rpm
b5b4e1ad4db39e8bede52cd0f171c508
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kernel-iseries64-2.6.13-15.7.ppc.rpm
a7fbffd1f09d4e6c9a58950fe1692361
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kernel-ppc64-2.6.13-15.7.ppc.rpm
a09e0b94d50c24ea8065b709ccb53775
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kernel-source-2.6.13-15.7.ppc.rpm
ae4c7ad291aaa37dceb43e331651b2c4
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kernel-syms-2.6.13-15.7.ppc.rpm
51ddc5ea24587d210edb3e249b0472c9
x86-64 Platform:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-default-2.6.13-15.7.x86_64.rpm
ae11f5ccb7e1f96d9cb38444d1ae770f
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-default-nongpl-2.6.13-15.7.x86_64.rpm
a2f3716cc423c87b8f7505629c13716a
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-smp-2.6.13-15.7.x86_64.rpm
0899d5b37db71c18ac4d7733189388bd
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-smp-nongpl-2.6.13-15.7.x86_64.rpm
108a43a7e5386d1f2b098e31f9299ec1
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-source-2.6.13-15.7.x86_64.rpm
94f28fdcbeff5b02c95da380808a0347
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-syms-2.6.13-15.7.x86_64.rpm
2d106be84319cdf38210076c4113a95a
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-xen-2.6.13-15.7.x86_64.rpm
58f4740f9538a21e9e187c751a58a376
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kernel-xen-nongpl-2.6.13-15.7.x86_64.rpm
3c8a4dd3378a988c79675f9a84a2969c
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-3.0_7608-2.1.x86_64.rpm
7595b44074a3d8cc51288e9473c81e0d
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-devel-3.0_7608-2.1.x86_64.rpm
135cc2d6855f10518bbf6555405dd63d
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-doc-html-3.0_7608-2.1.x86_64.rpm
481e6f688096bb367c35a67fb2185504
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-doc-pdf-3.0_7608-2.1.x86_64.rpm
7f67dd3c63742fb07f424ff7cd1f87b3
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-doc-ps-3.0_7608-2.1.x86_64.rpm
e768c5066b488a556496574bccbda414
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-tools-3.0_7608-2.1.x86_64.rpm
118c0e872deb66309fc9c6957969bad4
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/xen-tools-ioemu-3.0_7608-2.1.x86_64.rpm
00ecbc085cb200937224d8a2bbda3ec7
Sources:
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/Intel-536ep-4.69-14.2.src.rpm
c4ee0c5893efbde6ecf45f0da05e5103
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/kernel-source-2.6.13-15.7.src.rpm
56dd71a804ebcaa1eb8268665dfa2b18
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/xen-3.0_7608-2.1.src.rpm
3571ce3e27ca472bffc2f2794eeae8a0
______________________________________________________________________________
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.
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@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.
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@xxxxxxx), 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:
suse-security@xxxxxxxx
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<suse-security-subscribe@xxxxxxxx>.
suse-security-announce@xxxxxxxx
- 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@xxxxxxxx>.
For general information or the frequently asked questions (FAQ),
send mail to <suse-security-info@xxxxxxxx> or
<suse-security-faq@xxxxxxxx>.
=====================================================================
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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Comment: For info see http://www.gnupg.org
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