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________________________________________________________________________
Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: kernel
Date: August 28th, 2001
Advisory ID: MDKSA-2001:071
Affected versions: 8.0
________________________________________________________________________
Problem Description:
A security hole was found in the earlier Linux 2.4 kernels dealing with
iptables RELATED connection tracking. The iptables ip_conntrack_ftp
module, which is used for stateful inspection of FTP traffic,
does not validate parameters passed to it in an FTP PORT command. Due
to this flaw, carefully constructed PORT commands could open arbitrary
holes in the firewall. This hole has been fixed, as well as a number
of other bugs for the 2.4 kernel shipped with Mandrake Linux 8.0
NOTE: This update is *not* meant to be done via MandrakeUpdate! You
must download the necessary RPMs and upgrade manually by following
these steps:
1. Type: rpm -ivh kernel-2.4.7-12.3mdk.i586.rpm
2. Type: mv kernel-2.4.7-12.3mdk.i586.rpm /tmp
3. Type: rpm -Fvh *.rpm
4. You may wish to edit /etc/lilo.conf to ensure a new entry is in
place. The new kernel will be the last entry. Change any options
you need to change.
5. Type: /sbin/lilo -v
You may then reboot and use the nwe kernel and remove the older kernel
when you are comfortable using the upgraded one.
________________________________________________________________________
References:
http://www.tempest.com.br/advisories/01-2001.html
________________________________________________________________________
Please verify the update prior to upgrading to ensure the integrity of
the downloaded package. You can do this with the command:
rpm --checksig package.rpm
You can get the GPG public key of the Mandrake Linux Security Team at
http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.
Mandrake Linux 8.0:
3470b59e9912d02e118acb89ac593fa9 8.0/RPMS/kernel-2.4.7-12.3mdk.i586.rpm
e9bde85b807e2cbaf528691dfdf7178e 8.0/RPMS/kernel-doc-2.4.7-12.3mdk.i586.rpm
6dc51e2681acf96a6f4379ce54cfc4be 8.0/RPMS/kernel-enterprise-2.4.7-12.3mdk.i586.rpm
2c6ad3ce5bc0f15c7f50e7bef5a4354f 8.0/RPMS/kernel-headers-2.4.7-12.3mdk.i586.rpm
7f1397224ea6e9057e4fea3ebe71272c 8.0/RPMS/kernel-pcmcia-cs-2.4.7-12.3mdk.i586.rpm
ce3ffe981f89dc0cee63578afb5bd0ed 8.0/RPMS/kernel-smp-2.4.7-12.3mdk.i586.rpm
388fe5f66c4ff1436619eaf1cf7f0044 8.0/RPMS/kernel-source-2.4.7-12.3mdk.i586.rpm
7c8d94b419292a19be53e24f850ad18b 8.0/RPMS/lm_utils-2.4.7_2.6.0-12.3mdk.i586.rpm
b23c2208ed7b7f13b3bf81dc9e64e8f5 8.0/RPMS/lm_utils-devel-2.4.7_2.6.0-12.3mdk.i586.rpm
2840a05e40c1f006716bf6d586386d47 8.0/RPMS/iptables-1.2.2-3.1mdk.i586.rpm
d9b13f5e779d6636cb193b5aecc25655 8.0/RPMS/iptables-ipv6-1.2.2-3.1mdk.i586.rpm
0a5f552da7f4d1a56b2b6eb3dcffd773 8.0/SRPMS/kernel-2.4.7-12.3mdk.src.rpm
dabf5f147c7c578bf994571125a31938 8.0/SRPMS/iptables-1.2.2-3.1mdk.src.rpm
________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
________________________________________________________________________
If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".
You can download the updates directly from one of the mirror sites
listed at:
http://www.linux-mandrake.com/en/ftp.php3.
Updated packages are available in the "updates/[ver]/RPMS/" directory.
For example, if you are looking for an updated RPM package for
Mandrake Linux 8.0, look for it in "updates/8.0/RPMS/". Updated source
RPMs are available as well, but you generally do not need to download
them.
Please be aware that sometimes it takes the mirrors a few hours to
update.
You can view other security advisories for Mandrake Linux at:
http://www.linux-mandrake.com/en/security/
If you want to report vulnerabilities, please contact
security@linux-mandrake.com
________________________________________________________________________
Mandrake Linux has two security-related mailing list services that
anyone can subscribe to:
security-announce@linux-mandrake.com
Mandrake Linux's security announcements mailing list. Only
announcements are sent to this list and it is read-only.
security-discuss@linux-mandrake.com
Mandrake Linux's security discussion mailing list. This list is open
to anyone to discuss Mandrake Linux security specifically and Linux
security in general.
To subscribe to either list, send a message to
sympa@linux-mandrake.com
with "subscribe [listname]" in the body of the message.
To remove yourself from either list, send a message to
sympa@linux-mandrake.com
with "unsubscribe [listname]" in the body of the message.
To get more information on either list, send a message to
sympa@linux-mandrake.com
with "info [listname]" in the body of the message.
Optionally, you can use the web interface to subscribe to or unsubscribe
from either list:
http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security@linux-mandrake.com>
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