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

Security Bulletin

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 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

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Support for IBM MQ CloudPak versions

The support lifecycle for IBM MQ CloudPaks is tied directly to the support lifecycle of the IBM MQ version that runs within the CloudPak. When the underlying MQ version goes out of support then the CloudPak will automatically go out of support. IBM MQ CloudPaks are only available with Continous Delivery versions of IBM MQ and so follow the IBM MQ Continuous Delivery support lifecycle .

The version number for the CloudPak provides an indication to customers on what kind of change has been made between different versions. The versioning system used in CloudPaks is the semver versioning system and does not correlate directly to the V.R.M.F version used by IBM MQ.

For reference the table below shows which versions of IBM MQ are available with which version of CloudPak, this can be used to determine whether the version of CloudPak you are using is still in support:

IBM MQ CloudPak and IBM MQ versions
IBM MQ Version	IBM MQ CloudPak for IBM Cloud Private Version	IBM MQ CloudPak for IBM Cloud Private on RedHat OpenShift Version
9.1.1	2.2.0 and later	2.2.0 and later
9.1.0	2.0.0 -2.1.0	2.1.0
9.0.5	1.3.0	N/A
9.0.4	1.2.0 - 1.2.2	N/A
9.0.3	1.0.0 - 1.1.0	N/A

Change History

25 February 2019: Original Version published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

Product Record: 130906

Advisory: 15257

Document Location

Worldwide

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Tips

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