USN-4000-1: Corosync vulnerability

corosync vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

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

Software Description

• 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.

Update instructions

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

Ubuntu 18.04 LTS

corosync - 2.4.3-0ubuntu1.1

libtotem-pg5 - 2.4.3-0ubuntu1.1

Ubuntu 16.04 LTS

corosync - 2.3.5-3ubuntu2.3

libtotem-pg5 - 2.3.5-3ubuntu2.3

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.

References

• CVE-2018-1084

from Ubuntu Security Notices http://bit.ly/2XiFhdk