102888 2003-05-29 06:47 /176 rader/ <bugzilla@redhat.com>
Importerad: 2003-05-29 06:47 av Brevbäraren
Extern mottagare: redhat-watch-list@redhat.com
Mottagare: Bugtraq (import) <5053>
Ärende: [RHSA-2003:145-01] Updated kernel fixes security vulnerabilities and updates drivers
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Red Hat Security Advisory
Synopsis: Updated kernel fixes security vulnerabilities and updates drivers
Advisory ID: RHSA-2003:145-01
Issue date: 2003-05-27
Updated on: 2003-05-27
Product: Red Hat Enterprise Linux
Keywords: ptrace x450
Cross references:
Obsoletes:
CVE Names: CAN-2003-0127 CAN-2003-0244
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1. Topic:
These updated kernel packages address security vulnerabilites,
including a potential data corruption scenario. In addition, a
number of drivers have been updated, bugs have been resolved, and
support for the IBM x450 platform and the Madison processor have been
added.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
3. Problem description:
The Linux kernel handles the basic functions of the operating system.
A ptrace-related vulnerability has been discovered that could allow a
local user to gain elevated (root) privileges without authorization.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0127 to this issue.
A flaw has been discovered that could potentially lead to data
corruption.
The scenario only occurs while performing memory mapped file I/O,
where the file is simultaneously unlinked and the corresponding file
blocks reallocated. Furthermore, the memory mapped must be to a
partial page at the end of a file on an ext3 file system. As such,
Red Hat considers this scenario unlikely.
A flaw has been found in several hash table implementations in the
kernel networking code. A remote attacker could send packets with
carefully chosen, forged source addresses in such a way as to make
every routing cache entry get hashed into the same hash chain. The
result would be that the kernel would use a disproportionate amount
of processor time to deal with new packets, resulting in a remote
denial of service attack. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2003-0244 to this
issue.
In addition, the following drivers have been updated to the version
indicated:
- e1000: 4.4.19-k1
- e100: 2.1.29-k2
- ips: 6.00.26
- qla2100, qla2200, qla2300: v6.04.01
- tg3 driver to 1.4c
- cciss driver to 2.4.44
- mpt fusion: 2.05.00
- aic7xxx to 6.2.32
- aic79xx to 1.3.6
If the system is configured to use alternate drivers, we recommend
applying the kudzu errata RHEA-2003:132 prior to updating the kernel.
The updated kernel also adds support for the IBM x450 platform and
the Madison processor, and incorporates improved support for the
hugetlb file system. This file system makes efficient use of the
large page size support that the Itanium architecture provides.
All users should upgrade to these errata packages, which address these issues.
4. Solution:
Release notes, driver notes, and driver disks for this update are
available at the following URL:
http://www.redhat.com/support/errata/rhel/
Before applying this update, make sure all previously released errata
relevant to your system have been applied, especially the additional
packages from RHSA-2002:205 and RHSA-2002:206 respectively.
The procedure for upgrading the kernel manually is documented at:
http://www.redhat.com/support/docs/howto/kernel-upgrade/
Please read the directions for your architecture carefully before
proceeding with the kernel upgrade.
Please note that this update is also available via Red Hat
Network. Many people find this to be an easier way to apply
updates. To use Red Hat Network, launch the Red Hat Update Agent with
the following command:
up2date
This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system. Note that you need to
select the kernel explicitly on default configurations of up2date.
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
81349 - Machine with QLogic card hung during RAC QA 81794 - IPF:
AS2.1 Errata 2: spare lun patch for VA and XP storage arrays 88301 -
RHEL AS2.1 IPF: Seeing MCAs on system while testing Tulip driver
81803 - AS2.1 Errata 2: Fix to serial driver
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/kernel-2.4.18-e.31.src.rpm
ia64:
Available from Red Hat Network: kernel-source-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-smp-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-doc-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-2.4.18-e.31.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/kernel-2.4.18-e.31.src.rpm
ia64:
Available from Red Hat Network: kernel-source-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-smp-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-doc-2.4.18-e.31.ia64.rpm
Available from Red Hat Network: kernel-2.4.18-e.31.ia64.rpm
7. Verification:
MD5 sum Package Name
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ba07dc3a6150a7512fc11f177b909526 2.1AS/en/os/SRPMS/kernel-2.4.18-e.31.src.rpm
e0ff58250b006c516f799866f0066e5c 2.1AS/en/os/ia64/kernel-2.4.18-e.31.ia64.rpm
4e578976d53cfd049cf72b3c5e072ae7 2.1AS/en/os/ia64/kernel-doc-2.4.18-e.31.ia64.rpm
d83d298a453b3d5c132c24a290b4ea7a 2.1AS/en/os/ia64/kernel-smp-2.4.18-e.31.ia64.rpm
8abaf7731b2447b3232bda41123a4638 2.1AS/en/os/ia64/kernel-source-2.4.18-e.31.ia64.rpm
ba07dc3a6150a7512fc11f177b909526 2.1AW/en/os/SRPMS/kernel-2.4.18-e.31.src.rpm
e0ff58250b006c516f799866f0066e5c 2.1AW/en/os/ia64/kernel-2.4.18-e.31.ia64.rpm
4e578976d53cfd049cf72b3c5e072ae7 2.1AW/en/os/ia64/kernel-doc-2.4.18-e.31.ia64.rpm
d83d298a453b3d5c132c24a290b4ea7a 2.1AW/en/os/ia64/kernel-smp-2.4.18-e.31.ia64.rpm
8abaf7731b2447b3232bda41123a4638 2.1AW/en/os/ia64/kernel-source-2.4.18-e.31.ia64.rpm
These packages are GPG signed by Red Hat for security. Our key is
available at http://www.redhat.com/solutions/security/news/publickey/
You can verify each package with the following command:
rpm --checksig -v <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
md5sum <filename>
8. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0127
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0244
9. Contact:
The Red Hat security contact is <security@redhat.com>. More contact
details at http://www.redhat.com/solutions/security/news/contact/
Copyright 2003 Red Hat, Inc.
(102888) / <bugzilla@redhat.com>/---------(Ombruten)