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:
  • Acrobat Reader (CVE-2011-0609 CVE-2011-0611 CVE-2011-1353 CVE-2011-2094 CVE-2011-2095 CVE-2011-2096 CVE-2011-2097 CVE-2011-2098 CVE-2011-2099 CVE-2011-2100 CVE-2011-2101 CVE-2011-2102 CVE-2011-2103 CVE-2011-2104 CVE-2011-2105 CVE-2011-2106 CVE-2011-2130 CVE-2011-2134 CVE-2011-2135 CVE-2011-2136 CVE-2011-2137 CVE-2011-2138 CVE-2011-2139 CVE-2011-2140 CVE-2011-2414 CVE-2011-2415 CVE-2011-2416 CVE-2011-2417 CVE-2011-2425 CVE-2011-2424 CVE-2011-2431 CVE-2011-2432 CVE-2011-2433 CVE-2011-2434 CVE-2011-2435 CVE-2011-2436 CVE-2011-2437 CVE-2011-2438 CVE-2011-2439 CVE-2011-2440 CVE-2011-2441 CVE-2011-2442 CVE-2011-2462 CVE-2011-4369)
  • Heimdal (CVE-2011-4862)

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