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USN-4000-1: Corosync vulnerability

30 May 2019

Corosync could be made to crash or execute arbitrary code if it received a specially crafted request.



  • corosync - cluster engine daemon and utilities


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.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 16.04

After a standard system update you need to restart Corosync to make
all the necessary changes.