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ESX Server 3.0.1, Patch ESX-1003521: Security Updates to the libxml2 Utility (1003521)


Release Date: 04/10/08
Document Last Updated: 04/10/08

Product Versions
ESX Server 3.0.1
Patch Classification
Virtual Machine Migration or Reboot Required
ESX Server Host Reboot Required
PRs Fixed
Affected Hardware
Affected Software
RPMs Included
libxml2-2.5.10-7, libxml2-python-2.5.10-7
Related CVE numbers

This patch provides updates to the libxml2 utility for service console. The patch fixes the following security issue:

The libxml2 package provides a library to manipulate XML files. The package includes support to read, modify, and write XML files. A denial of service flaw was found in the way libxml2 processes certain content. If an application that is linked against libxml2 processes malformed XML content, the XML content might cause the application to stop responding.
The Common Vulnerabilities and Exposures project ( has assigned the name CVE-2007-6284 to this issue.



There are no symptoms for this security issue.

Deployment Considerations


Download Instructions

Download and verify the patch bundle as follows:

1.      Download patch ESX-1003521 from .
2.      Log in to the ESX Server service console as root.

3.      Create a local depot directory.

# mkdir -p /var/updates

Note: VMware recommends that you use the updates directory.

4.      Change your working directory to /var/updates.

# cd /var/updates

5.      Download the tar file into the /var/updates directory.
6.      Verify the integrity of the downloaded tar file:
# md5sum ESX-1003521.tgz

The md5 checksum output should match the following:

54ac44402252128042c8325c4c1b63b2 ESX-1003521.tgz

7.      Extract the compressed tar archive:

# tar -xvzf ESX-1003521.tgz

8.      Change to the newly created directory, /var/updates/ESX-1003521:

# cd ESX-1003521

Installation Instructions

After you download and extract the archive, and if you are in the directory that you previously created, use the following command to install the update:

# esxupdate update

To run esxupdate from a different directory, you must specify the bundle path in the command:

# esxupdate -r file://<directory>/ESX-1003521 update

For example, if the host is called depot:

# esxupdate -r file:///depot/var/updates/ESX-1003521 update

During the update process, logs appear on the terminal. You can specify the verbosity of esxupdate logs by using the -v option as shown below.

# esxupdate -v 10 file://<directory>/ESX-1003521 update

For more information how to use esxupdate, see the Patch Management for ESX Server 3 tech note at



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