Corosync could be made to crash or execute arbitrary code if it received a specially crafted request.
It was discovered that Corosync incorrectly handled certain requests. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code.
30 May 2019
A security issue affects these releases of Ubuntu and its derivatives:
Corosync could be made to crash or execute arbitrary code if it received a specially crafted request.
It was discovered that Corosync incorrectly handled certain requests. An attacker could possibly use this issue to cause a denial of service or 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 restart Corosync to make all the necessary changes.