Ubuntu 20.04 LTS USN-5800-1 Critical: Heimdal DoS Threats

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libasn1-8-heimdal 7.7.0+dfsg-1ubuntu1.3 libgssapi3-heimdal 7.7.0+dfsg-1ubuntu1.3 libhdb9-heimdal 7.7.0+dfsg-1ubuntu1.3 libhx509-5-heimdal 7.7.0+dfsg-1ubuntu1.3 libkrb5-26-heimdal 7.7.0+dfsg-1ubuntu1.3 Ubuntu 18.04 LTS: libasn1-8-heimdal 7.5.0+dfsg-1ubuntu0.3 libgssapi3-heimdal 7.5.0+dfsg-1ubuntu0.3 libhdb9-heimdal 7.5.0+dfsg-1ubuntu0.3 libhx509-5-heimdal 7.5.0+dfsg-1ubuntu0.3 libkrb5-26-heimdal 7.5.0+dfsg-1ubuntu0.3 Ubuntu 16.04 ESM: libasn1-8-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libgssapi3-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libhdb9-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libhx509-5-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 libkrb5-26-heimdal 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm3 Ubuntu 14.04 ESM: libasn1-8-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm3 libgssapi3-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm3 libhdb9-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm3 libhx509-5-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm3 libkrb5-26-heimdal 1.6~git20131207+dfsg-1ubuntu1.2+esm3 After a standard system update you need to restart any application using Heimdal libraries to make all the necessary changes.