Wayland could be made to crash or run programs if it opened a specially crafted file.
It was discovered that the Wayland Xcursor support incorrectly handled certain files. An attacker could use these issues to cause Wayland to crash, resulting in a denial of service, or possibly execute arbitrary code.
9 April 2018
A security issue affects these releases of Ubuntu and its derivatives:
Wayland could be made to crash or run programs if it opened a specially crafted file.
It was discovered that the Wayland Xcursor support incorrectly handled certain files. An attacker could use these issues to cause Wayland to crash, resulting in a denial of service, or possibly execute arbitrary code.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.
Vulmon