Security Bulletin: IBM MQ Advanced CloudPaks are vulnerable to a denial of service attack within the Systemd package (CVE-2019-6454)

Summary

A denial of service attack was discovered in Systemd which is included with IBM MQ CloudPaks.

Vulnerability Details

CVEID: CVE-2019-6454 DESCRIPTION: systemd is vulnerable to a denial of service, caused by a flaw in the bus_process_object function in bus-objects.c. By sending a specially-crafted DBUS message, a local authenticated attacker could exploit this vulnerability to crash PID 1 and result in a subsequent kernel panic.
CVSS Base Score: 5.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157193&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM MQ Advanced CloudPak (IBM Cloud Private, all platforms) Continuous Delivery

v2.0.0 - v2.2.2

IBM MQ Advanced CloudPak (IBM Cloud Private on RedHat OpenShift) Continuous Delivery

v2.1.0 - v2.2.1

Remediation/Fixes

IBM MQ Advanced CloudPak (IBM Cloud Private, all platforms) Continuous Delivery

Apply Fix IBM-MQ-Adv-Cloud-Pak-2.2.3 to upgrade to version v2.2.3

IBM MQ Advanced CloudPak (IBM Cloud Private on RedHat OpenShift) Continuous Delivery

Apply Fix IBM-MQ-Adv-Cloud-Pak-2.2.2-RHOS to upgrade to version v2.2.2

Workarounds and Mitigations

None