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RedHat: Powertools: 'Mailman' cross-site scripting vulnerability Print E-mail
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Posted by Team   
RedHat Linux Updated Mailman packages are now available for Red Hat PowerTools 7 and7.1. These updates fix cross-site scripting bugs which might allow anotherserver to be used to gain a user's private information from a serverrunning Mailman.

                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated Mailman packages available
Advisory ID:       RHSA-2001:169-10
Issue date:        2001-12-11
Updated on:        2001-12-20
Product:           Red Hat Powertools
Keywords:          cross-site scripting
Cross references:  RHSA-2001:168 RHSA-2001:170

1. Topic:

Updated Mailman packages are now available for Red Hat PowerTools 7 and
7.1.  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 Powertools 7.0 - alpha, i386

Red Hat Powertools 7.1 - alpha, 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 ( 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:


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 for more info):

6. RPMs required:

Red Hat Powertools 7.0:




Red Hat Powertools 7.1:




7. Verification:

MD5 sum                          Package Name
5c0035f2b55edfaae6aa2f0aded1908a 7.0/en/powertools/SRPMS/mailman-2.0.8-0.7.0.src.rpm
98b8f4d6d142c8b6b72fd93dd43be6a6 7.0/en/powertools/alpha/mailman-2.0.8-0.7.0.alpha.rpm
9a897b9b69fb2a547846b02ba0b46886 7.0/en/powertools/i386/mailman-2.0.8-0.7.0.i386.rpm
7247f28d0c41f0844f13dfc594ea0ccf 7.1/en/powertools/SRPMS/mailman-2.0.8-1.src.rpm
841f778f07ef0464019c348f58eaa358 7.1/en/powertools/alpha/mailman-2.0.8-1.alpha.rpm
23d42ac2e45b24de1e051cdc2855d32a 7.1/en/powertools/i386/mailman-2.0.8-1.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:

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:

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

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