Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2004.0301 -- RHSA-2004:166-01
Updated kernel packages resolve security vulnerabilities
22 April 2004
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Linux 9
Linux
Impact: Root Compromise
Denial of Service
Reduced Security
Access Required: Remote
CVE Names: CAN-2004-0003 CAN-2004-0109 CAN-2004-0177
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- - ---------------------------------------------------------------------
Red Hat Security Advisory
Synopsis: Updated kernel packages resolve security vulnerabilities
Advisory ID: RHSA-2004:166-01
Issue date: 2004-04-21
Updated on: 2004-04-21
Product: Red Hat Linux
Keywords:
Cross references:
Obsoletes: RHSA-2004:065
CVE Names: CAN-2004-0003 CAN-2004-0109 CAN-2004-0177
- - ---------------------------------------------------------------------
1. Topic:
Updated kernel packages that fix several minor security vulnerabilities are
now available
2. Relevant releases/architectures:
Red Hat Linux 9 - athlon, i386, i586, i686
3. Problem description:
The Linux kernel handles the basic functions of the operating system.
iDefense reported a buffer overflow flaw in the ISO9660 filesystem code.
An attacker could create a malicious filesystem in such a way that they
could gain root privileges if that filesystem is mounted. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0109 to this issue.
Solar Designer from OpenWall discovered a minor information leak in the
ext3 filesystem code due to the lack of initialization of journal
descriptor blocks. This flaw has only minor security implications and
exploitation requires privileged access to the raw device. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0177 to this issue.
These packages also contain an updated fix with additional checks for
issues in the R128 Direct Render Infrastructure. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-0003 to this issue.
Additionally, hardening of the mremap function was applied to
prevent a potential local denial of service attack.
All users are advised to upgrade to these errata packages, which contain
backported security patches that correct these issues.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.
Please note that this update is also available via Red Hat Network. Many
people find this 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.
If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate. The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:
https://rhn.redhat.com/help/latest-up2date.pxt
5. RPMs required:
Red Hat Linux 9:
SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/kernel-2.4.20-31.9.src.rpm
athlon:
ftp://updates.redhat.com/9/en/os/athlon/kernel-2.4.20-31.9.athlon.rpm
ftp://updates.redhat.com/9/en/os/athlon/kernel-smp-2.4.20-31.9.athlon.rpm
i386:
ftp://updates.redhat.com/9/en/os/i386/kernel-2.4.20-31.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-BOOT-2.4.20-31.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-doc-2.4.20-31.9.i386.rpm
ftp://updates.redhat.com/9/en/os/i386/kernel-source-2.4.20-31.9.i386.rpm
i586:
ftp://updates.redhat.com/9/en/os/i586/kernel-2.4.20-31.9.i586.rpm
ftp://updates.redhat.com/9/en/os/i586/kernel-smp-2.4.20-31.9.i586.rpm
i686:
ftp://updates.redhat.com/9/en/os/i686/kernel-2.4.20-31.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-bigmem-2.4.20-31.9.i686.rpm
ftp://updates.redhat.com/9/en/os/i686/kernel-smp-2.4.20-31.9.i686.rpm
6. Verification:
MD5 sum Package Name
- - --------------------------------------------------------------------------
0061cca9f47e3f6d90f75a6d05273e9d 9/en/os/SRPMS/kernel-2.4.20-31.9.src.rpm
806af5b5485efc5c20985df4caa67c73 9/en/os/athlon/kernel-2.4.20-31.9.athlon.rpm
db93f183e901f54c16ae9011a789061b 9/en/os/athlon/kernel-smp-2.4.20-31.9.athlon.rpm
fed12b86b5bbdbc504d3759ec9746bd5 9/en/os/i386/kernel-2.4.20-31.9.i386.rpm
d75837330b6bd151aa7dc41f0739cd5c 9/en/os/i386/kernel-BOOT-2.4.20-31.9.i386.rpm
f07cfe7307e1b3742f3f6471aa3dc9a9 9/en/os/i386/kernel-doc-2.4.20-31.9.i386.rpm
434b8067c7a15a21096e8f72fd2b913a 9/en/os/i386/kernel-source-2.4.20-31.9.i386.rpm
03714321817cd47c6ffbdd6378046c16 9/en/os/i586/kernel-2.4.20-31.9.i586.rpm
fc1e97e4187a038046974f8ee61dac98 9/en/os/i586/kernel-smp-2.4.20-31.9.i586.rpm
b9ff44df6f8950ae64febda7b6afa9c1 9/en/os/i686/kernel-2.4.20-31.9.i686.rpm
86246976656da74b05dd460a60e444b1 9/en/os/i686/kernel-bigmem-2.4.20-31.9.i686.rpm
df5e314e867757b8f420c17def224d56 9/en/os/i686/kernel-smp-2.4.20-31.9.i686.rpm
These packages are GPG signed by Red Hat for security. Our key is
available from https://www.redhat.com/security/team/key.html
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>
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0003
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0109
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0177
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact.html
Copyright 2004 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)
iD8DBQFAhpAyXlSAg2UNWIIRAsFiAKCv9wUaUDJPhqLVoVRZrZa21F1+9QCfeZGm
VWkrCrUP79Mv6ZjKNe4qXEw=
=JlF1
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
http://www.auscert.org.au/render.html?it=3192
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business
hours which are GMT+10:00 (AEST). On call after hours
for member emergencies only.
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQCVAwUBQIdoqCh9+71yA2DNAQIIUwP+PHMVHhdAkNxcH6EZR+bgbPasCvEIqx07
s6RnJasEl9QjMBDP7OIzeGCv6mmo0Wpxo7TMGqurjMrPP+gSVIQPGlWlImziR5sN
uZH8+Qbo9bpZShXKvs/j0nNZuN/gZYfmFNamqHZYC72NoaJFDVwgyHRysqnAc2jL
cHakOp1XJ7A=
=HR31
-----END PGP SIGNATURE-----