1. Ubuntu Security Notices
  2. USN-4000-1

USN-4000-1: Corosync vulnerability

Publication date

30 May 2019

Overview

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

Releases

Packages

  • corosync - cluster engine daemon and utilities

Details

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic corosync –  2.4.3-0ubuntu1.1
libtotem-pg5 –  2.4.3-0ubuntu1.1
16.04 xenial corosync –  2.3.5-3ubuntu2.3
libtotem-pg5 –  2.3.5-3ubuntu2.3

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References

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