Ubuntu 20.04 USN-5766-1: heimdal Denial Of Service Threat

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libwind0-heimdal 7.7.0+dfsg-1ubuntu1.2 Ubuntu 18.04 LTS: libwind0-heimdal 7.5.0+dfsg-1ubuntu0.2 Ubuntu 16.04 ESM: libwind0-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm2 Ubuntu 14.04 ESM: libwind0-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm2 After a standard system update you need to restart any application using Heimdal libraries to make all the necessary changes.