Meltdown and Spectre are critical vulnerabilities existing in several modern CPUs. Due to these security vulnerabilities, unauthorized users may gain access to supposedly protected memory areas. These problems affect most CPUs made by Intel, but also by AMD and ARM, regardless of the operating system in use.
So far, there are three known variants of this issue:
We highly recommend to install the latest errata updates which have been released by Univention. If you still use an outdated version of UCS like UCS 1, UCS 2 or UCS 3, please upgrade. We will only release updates for UCS 4.1-5 and UCS 4.2-2 and UCS 4.2-3. The UCS 4.2 updates will be available for Enterprise and Core Edition users, the UCS 4.1 fixes will only be available for Enterprise users.
Status in UCS:
- We are also checking how the Spectre issues can be mitigated.