Ubuntu alert USN-4000-1 (corosync)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-4000-1] Corosync vulnerability 
Date:
             
 
Thu, 30 May 2019 14:25:41 -0300
Message-ID:
             
 
<1559237141.3156.14.camel@canonical.com>
==========================================================================
Ubuntu Security Notice USN-4000-1
May 30, 2019

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

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

References:
  https://usn.ubuntu.com/usn/usn-4000-1
  CVE-2018-1084

Package Information:
  https://launchpad.net/ubuntu/+source/corosync/2.4.3-0ubun...
  https://launchpad.net/ubuntu/+source/corosync/2.3.5-3ubun...-- 
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