Hotfix package name: XS50EU3002 – Hotfix XS50EU3002 – For XenServer 5.0 Update 3

For: XenServer 5.0 Update 3
Replaces: None
Date: Jan, 2010
Language supported: English (US)
Readme version: 1.00

Who Should Install This Hotfix?
Customers with hardware devices that use the kernel driver for RealTek r8169 should apply this hotfix.

Issue Resolved In This Hotfix
This hotfix resolves a security issue with the kernel driver for RealTek r8169. See Vulnerability in XenServer 5.0 and 5.5 Could Result in Arbitrary Code Execution for further information.

Installing the Hotfix
Customers should use either XenCenter or the CLI to install this update. Once the update has been installed, in order for it to take effect, the server must be restarted. As with any software update, please back up your data before applying this hotfix.

Always install the hotfix to the master of your pool first. If you do not do this, updated slaves cannot reconnect to the pool until the master has also been updated. Following the steps below once to upgrade the master, restarting the master, and then following the steps again for each of the slaves is best practice to ensure that the installation is completed in the correct order.

Installing the update using XenCenter

Download the update to a known location on a computer that has XenCenter installed.
In XenCenter, on the Tools menu, select Install New Update.
Select the servers you wish to update.
Citrix advises to update all hosts in a pool within a short space of time. Running a mixed pool of updated and non-updated hosts for general operation is not supported.
Click Next to proceed in the wizard.
Enter the path to browse to the downloaded update file. Click Next and the update will be uploaded to the pools and servers you chose to update.
Click Finish.
Citrix strongly advises that you use Manual mode for this update. If you select Manual mode, the update will be applied on each server but you will be required to manually restart the servers for the update to take effect.
After the hotfix is installed on all servers then reboot each server.

Installing the update using the off-host CLI

Download the hotfix to a known location on a computer that has the XenServer CLI installed.
Upload the hotfix to the pool or host you wish to apply it to:
$ xe -s -u root -pw patch-upload file-name=
This causes the hotfix identifier to be printed to the screen:
B7616953-53E2-414E-B93A-EE817AC8655A
Apply the hotfix to the pool, specifying the UUID of the hotfix, as given by the upload command in the previous step:
$ xe -s -u root -pw patch-pool-apply \
uuid=B7616953-53E2-414E-B93A-EE817AC8655A
In order to complete the application of the hotfix, restart the hosts in the pool.

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