[RHSA-2003:072-08] Updated Gnome-lokkit packages fix vulnerability

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                   Red Hat Security Advisory

Synopsis:          Updated Gnome-lokkit packages fix vulnerability
Advisory ID:       RHSA-2003:072-00
Issue date:        2003-03-17
Updated on:        2003-03-17
Product:           Red Hat Linux
Keywords:          iptables forward lokkit
Cross references:  
CVE Names:         CAN-2003-0080

1. Topic:

Updated Gnome-lokkit packages fix missing FORWARD ruleset in Red Hat Linux 8.0

2. Relevant releases/architectures:

Red Hat Linux 8.0 - i386

3. Problem description:

Gnome-lokkit is a utility that provides firewalling for the average Linux
end user based on responses to a small number of simple questions.

Red Hat made modifications to Gnome-lokkit to support firewalls based on
iptables instead of ipchains.  In Red Hat Linux 8.0, the iptables ruleset
created by Gnome-lokkit did not place any rules on the FORWARD chain.  This
is a security vulnerability if an administrator enables packet forwarding
and uses an unmodified ruleset created by the Gnome-lokkit tool.

Users are advised to upgrade to these erratum packages which contain a
patch to Gnome-lokkit to also apply the INPUT chain ruleset to the FORWARD

Red Hat would like to thank Deneb Meketa for bringing this issue to our

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:


This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

84975 - does not include FORWARD chain

6. RPMs required:

Red Hat Linux 8.0:



7. Verification:

MD5 sum                          Package Name
5e5edd316950132ec84f9c727dac63f6 8.0/en/os/SRPMS/gnome-lokkit-0.50-21.8.0.src.rpm
01f42937db89e8afb3f30a704e52ca7f 8.0/en/os/i386/gnome-lokkit-0.50-21.8.0.i386.rpm
0f80d90d4766f04eef08928b33b6a25e 8.0/en/os/i386/lokkit-0.50-21.8.0.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at http://www.redhat.com/about/contact/pgpkey.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>

8. References:


9. Contact:

The Red Hat security contact is <security@redhat.com>.  More contact
details at http://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.

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