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List:       ubuntu-security-announce
Subject:    [USN-4000-1] Corosync vulnerability
From:       "Leonidas S. Barbosa" <leo.barbosa () canonical ! com>
Date:       2019-05-30 17:25:41
Message-ID: 1559237141.3156.14.camel () canonical ! com
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==========================================================================
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/2.4.3-0ubuntu1.1
   https://launchpad.net/ubuntu/+source/corosync/2.3.5-3ubuntu2.3
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