========================================================================== Ubuntu Security Notice USN-4398-1 June 16, 2020 dbus vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: DBus could be made to crash if it received specially crafted input. Software Description: - dbus: simple interprocess messaging system Details: Kevin Backhouse discovered that DBus incorrectly handled file descriptors. A local attacker could possibly use this issue to cause DBus to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: dbus 1.12.16-2ubuntu2.1 libdbus-1-3 1.12.16-2ubuntu2.1 Ubuntu 19.10: dbus 1.12.14-1ubuntu2.1 libdbus-1-3 1.12.14-1ubuntu2.1 Ubuntu 18.04 LTS: dbus 1.12.2-1ubuntu1.2 libdbus-1-3 1.12.2-1ubuntu1.2 Ubuntu 16.04 LTS: dbus 1.10.6-1ubuntu3.6 libdbus-1-3 1.10.6-1ubuntu3.6 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://usn.ubuntu.com/4398-1 CVE-2020-12049 Package Information: https://launchpad.net/ubuntu/+source/dbus/1.12.16-2ubuntu2.1 https://launchpad.net/ubuntu/+source/dbus/1.12.14-1ubuntu2.1 https://launchpad.net/ubuntu/+source/dbus/1.12.2-1ubuntu1.2 https://launchpad.net/ubuntu/+source/dbus/1.10.6-1ubuntu3.6