RedHat: 'mailman' cross-site scripting vulnerability
Posted by LinuxSecurity.com Team   
RedHat Linux Updated Mailman packages are now available for Red Hat Secure Web Server3.2 (U.S.). These updates fix cross-site scripting bugs which might allowanother server to be used to gain a user's private information from aserver running Mailman.

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                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated Mailman packages available
Advisory ID:       RHSA-2001:170-06
Issue date:        2001-12-11
Updated on:        2002-01-02
Product:           Red Hat Secure Web Server
Keywords:          cross-site scripting
Cross references:  RHSA-2001:168 RHSA-2001:169
Obsoletes:         
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1. Topic:

Updated Mailman packages are now available for Red Hat Secure Web Server
3.2 (U.S.).  These updates fix cross-site scripting bugs which might allow
another server to be used to gain a user's private information from a
server running Mailman.

2. Relevant releases/architectures:

Red Hat Secure Web Server 3.2 - i386

3. Problem description:

A server running Mailmain versions prior to 2.0.8 will send certain
user-modifiable data to clients without escaping embedded tags.  This data
may contain scripts which will then be executed by an unwary client,
possibly transmitting private information to a third party.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2001-0884 to this issue.

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.Red Hat.com/bugzilla for more info):



6. RPMs required:

Red Hat Secure Web Server 3.2:

i386: 
ftp://updates.Red Hat.com/other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm



7. Verification:

MD5 sum                          Package Name
--------------------------------------------------------------------------
e74be80586d59cff98f21b143e78cc48 other_prod/secureweb/3.2/SRPMS/mailman-2.0.8-0.6.2.src.rpm
c0b1a635356bb4c05218a4b49099bd1b other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm
 

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

You can verify each package with the following command:
    rpm --checksig  

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 

8. References:
 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0884 
http://mail.python.org/pipermail/mailman-announce/2001-November/000031.html 
http://www.cert.org/advisories/CA-2000-02.html 
http://www.cgisecurity.org/advisory/7.txt


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