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Date: Mon, 24 Nov 2003 03:53 -0500
Subject: [RHSA-2003:311-01] Updated Pan packages fix denial of service vulnerability

Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Updated Pan packages fix denial of service vulnerability
Advisory ID:       RHSA-2003:311-01
Issue date:        2003-11-24
Updated on:        2003-11-24
Product:           Red Hat Linux
Keywords:          DoS
Cross references:  
CVE Names:         CAN-2003-0855
- ---------------------------------------------------------------------

1. Topic:

Updated Pan packages that close a denial of service vulnerability are now

2. Relevant releases/architectures:

Red Hat Linux 7.1 - i386
Red Hat Linux 7.2 - i386, ia64
Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386
Red Hat Linux 9 - i386

3. Problem description:

Pan is a Gnome/GTK+ newsreader.

A bug in Pan versions prior to 0.13.4 can cause Pan to crash when parsing
an article header containing a very long author email address.  This bug
causes a crash (denial of service) but is not further exploitable.  The
Common Vulnerabilities and Exposures project ( has
assigned the name CAN-2003-0855 to this issue.

Users of Pan are advised to upgrade to these erratum packages, which
contain a backported patch correcting this issue.

Red Hat would like to thank Kasper Dupont for alerting us to this issue and
to Charles Kerr for providing the patch.

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.

If up2date fails to connect to Red Hat Network due to SSL Certificate 
Errors, you need to install a version of the up2date client with an updated 
certificate.  The latest version of up2date is available from the Red Hat 
FTP site and may also be downloaded directly from the RHN website:

5. Bug IDs fixed ( for more info):

107519 - CAN-2003-0855 Pan crash on long email address

6. RPMs required:

Red Hat Linux 7.1:



Red Hat Linux 7.2:




Red Hat Linux 7.3:



Red Hat Linux 8.0:



Red Hat Linux 9:



7. Verification:

MD5 sum                          Package Name
- --------------------------------------------------------------------------
f7ae5c253d3c673e940d080533ea0da2 7.1/en/os/SRPMS/pan-0.9.7-2.71.src.rpm
678e7f0f2ea996e3b8949b3bb607554b 7.1/en/os/i386/pan-0.9.7-2.71.i386.rpm
64d8752453a9e0437b4dd7bbb2c79504 7.2/en/os/SRPMS/pan-0.11.4-1.src.rpm
391d0c2e9eb7046f7b53496cc1ae0a4b 7.2/en/os/i386/pan-0.11.4-1.i386.rpm
9faccc8b01b90ca615e0c68f5b67b738 7.2/en/os/ia64/pan-0.11.4-1.ia64.rpm
64d8752453a9e0437b4dd7bbb2c79504 7.3/en/os/SRPMS/pan-0.11.4-1.src.rpm
391d0c2e9eb7046f7b53496cc1ae0a4b 7.3/en/os/i386/pan-0.11.4-1.i386.rpm
5e7a39ef2cc9782432e688719c83b078 8.0/en/os/SRPMS/pan-0.13.4-1.src.rpm
e3e3161bcb604f09b07b15c1b1fb817d 8.0/en/os/i386/pan-0.13.4-1.i386.rpm
d05d62893b42a03b570f8e60c2f3ef39 9/en/os/SRPMS/pan-0.14.2-1.9.src.rpm
7027ab2a49f4bb0aa4efa7415f0bd6cb 9/en/os/i386/pan-0.14.2-1.9.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key is
available from

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 <>.  More contact
details at

Copyright 2003 Red Hat, Inc.
Version: GnuPG v1.0.7 (GNU/Linux)


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