Operating System:

Published:

28 August 2002

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                     ESB-2002.469 -- RHSA-2002:176-06
     Updated mailman packages close cross-site scripting vulnerability
                              28 August 2002

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                mailman
Vendor:                 Red Hat
Operating System:       Red Hat Linux 7.2
                        Red Hat Linux 7.3
Platform:               i386
                        IA-64
Impact:                 Access Confidential Data
Access Required:        Remote

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                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated mailman packages close cross-site scripting vulnerability
Advisory ID:       RHSA-2002:176-06
Issue date:        2002-08-12
Updated on:        2002-08-22
Product:           Red Hat Linux
Keywords:          mailman cross-site scripting
Cross references:  RHSA-2002:177 RHSA-2002:178
Obsoletes:         RHSA-2002:099
CVE Names:         CAN-2002-0855
- ---------------------------------------------------------------------

1. Topic:

Updated mailman packages are now available for Red Hat Linux 7.2 and 7.3. 
These updates close a cross-site scripting vulnerability present in mailman
versions prior to version 2.0.12.

2. Relevant releases/architectures:

Red Hat Linux 7.2 - i386, ia64
Red Hat Linux 7.3 - i386

3. Problem description:

Mailman versions prior to 2.0.12 contain a cross-site scripting
vulnerability in the processing of invalid requests to edit a subscriber's
list subscription options.

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.

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

69787 - Security problems in mailman-2.0.9

6. RPMs required:

Red Hat Linux 7.2:

SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/mailman-2.0.13-1.src.rpm

i386:
ftp://updates.redhat.com/7.2/en/os/i386/mailman-2.0.13-1.i386.rpm

ia64:
ftp://updates.redhat.com/7.2/en/os/ia64/mailman-2.0.13-1.ia64.rpm

Red Hat Linux 7.3:

SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/mailman-2.0.13-1.src.rpm

i386:
ftp://updates.redhat.com/7.3/en/os/i386/mailman-2.0.13-1.i386.rpm



7. Verification:

MD5 sum                          Package Name
- --------------------------------------------------------------------------
f21b00d83a18e1664eb2fe41da8013f8 7.2/en/os/SRPMS/mailman-2.0.13-1.src.rpm
17ff9d61c91358739215efced3c8090d 7.2/en/os/i386/mailman-2.0.13-1.i386.rpm
33d430fee1e5732eefaa2e603c5b78e4 7.2/en/os/ia64/mailman-2.0.13-1.ia64.rpm
f21b00d83a18e1664eb2fe41da8013f8 7.3/en/os/SRPMS/mailman-2.0.13-1.src.rpm
17ff9d61c91358739215efced3c8090d 7.3/en/os/i386/mailman-2.0.13-1.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  <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:
    rpm --checksig --nogpg <filename>


8. References:

http://mail.python.org/pipermail/mailman-announce/2002-July/000043.html
http://mail.python.org/pipermail/mailman-announce/2002-July/000045.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0855


Copyright(c) 2000, 2001, 2002 Red Hat, Inc.

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