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This patch provides updates to the Samba package distributed with the service console for ESX Server 3.0.1. The patch addresses the following security issue:
Alin Rad Pop of Secunia Research found a stack buffer overflow flaw in the way Samba authenticates remote users. A remote unauthenticated user can trigger this flaw to cause the Samba server to crash, or execute arbitrary code with the permissions of the Samba server.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-6015 to this issue.
Note: This vulnerability can be exploited only if the attacker has access to the service console network. See the VMware Security Best Practices document http://www.vmware.com/resources/techresources/726 for configuration recommendations which enable ESX Server systems to resist this type of issue.
Download and verify the patch bundle as follows:
1. Download patch ESX-1003347 from http://www.vmware.com/download/vi/vi3_patches.html .
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.
7. Extract the compressed tar archive:
# tar -xvzf ESX-1003347.tgz
8. Change to the newly created directory, /var/updates/ESX-1003347:
# cd ESX-1003347
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-1003347 update
For example, if the host is called depot:
# esxupdate -r file:///depot/var/updates/ESX-1003347 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-1003347 update
For more information how to use esxupdate, see the Patch Management for ESX Server 3 tech note at http://www.vmware.com/pdf/esx3_esxupdate.pdf .