Open-Xchange releases UCS Hotfix 2012-03-07

This release provides a security update of Univention Corporate Server 2.4 which is integrated at Open-Xchange Advanced Server Edition and Open-Xchange Server Edition for UCS. We encourage administrators to install this update.

Fixed Components:
  • PHP (CVE-2010-2531 CVE-2011-1072 CVE-2011-2202 CVE-2011-4153 CVE-2011-4566 CVE-2011-4885 CVE-2012-0057 CVE-2012-0781 CVE-2012-0788 CVE-2012-0831)

Installation of this Hotfix Release:
It is necessary to activate the installation of Hotfixes. Please note the following step at

The system can be updated as usual for UCS using the univention-updater net command or the UMC module Online Update.
  • Please enter your username/password first under the component called „OX" and activate it.
  • In the online-updates module of UMC, under Release information, there is provided the new update
  • Click on "Install this update"
  • Reboot