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ESX Server 3.0.1, Patch ESX-1001214: vixe-cron Security Update
Details
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1e63db1cc7605830b16306a35bccd878 |
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Summary
This patch provides updated service console package vixie-cron fixes. Cron is a standard UNIX daemon that runs specified programs at scheduled times. A denial of service issue was found in the way vixie-cron verified crontab file integrity. A local user with the ability to create a hardlink to /etc/crontab can potentially prevent vixie-cron from executing certain system cron jobs.
Thanks to Raphael Marichez for identifying this issue.
The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2007-1856 to this issue.
Solution
Symptoms
There are no symptoms available for the security fixes.
Impact
This patch resolves the security issue described above.
For the related patch for ESX Server 3.0.0, see KB 1001205.
Download Instructions
Download and verify the patch bundle as follows:
- Download patch ESX-1001214 by clicking on the link above.
- Log in to the ESX Server service console as root.
- Create a local depot directory.
# mkdir -p /var/updates
Note: VMware recommends that you use the updates directory.
- Change your working directory to /var/updates.
# cd /var/updates
- Download the tar file into the /var/updates directory.
- Verify the integrity of the downloaded tar file:
# md5sum ESX-1001214.tgz
The md5 checksum output should match the following:
1e63db1cc7605830b16306a35bccd878 ESX-1001214.tgz - Extract the compressed tar archive:
# tar -xvzf ESX-1001214.tgz
- Change to the newly created directory, /var/updates/ESX-1001214:
# cd ESX-1001214
Installation Instructions
After you have downloaded and extracted the archive, and if you are in the directory you created above, install the update using the following command:
# esxupdate update
To run esxupdate from a different directory, you must specify the bundle path in the command:
# esxupdate -r file://<directory>/ESX-1001214 update
For example, if the host is called depot:
# esxupdate -r file:///depot/var/updates/ESX-1001214 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-1001214 update
For more information on using esxupdate, refer to the Patch Management for ESX Server 3 tech note at http://www.vmware.com/pdf/esx3_esxupdate.pdf.
Keywords
Feedback
- KB Article: 1001214
- Updated: Aug 14, 2009
- Products:
VMware ESX - Product Versions:
VMware ESX 3.0.x

