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Security Bulletin: Incorrect saved channel status enquiry could cause denial of service for IBM MQ (CVE-2017-1236)

Security Bulletin


Summary

IBM MQ could allow an authenticated user to potentially cause a denial of service by issuing an incorrect saved channel status inquiry.

Vulnerability Details


CVEID: CVE-2017-1236
DESCRIPTION:
 IBM MQ could allow an authenticated user to potentially cause a denial of service by saving an incorrect channel status inquiry.
CVSS Base Score: 3.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/124354 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM MQ 9.0.2 Continuous Delivery

IBM MQ Appliance 9.0.x Continuous Delivery

IBM MQ 9.0 LTS

IBM MQ 8.0

IBM MQ 8.0 Appliance

Remediation/Fixes

IBM MQ 9.0.2 Continuous Delivery

Apply IBM MQ 9.0.3 Continuous Delivery release or later.

IBM MQ Appliance 9.0.x Continuous Delivery

Apply continuous delivery update 9.0.3 or later.

IBM MQ 9.0 LTS

Apply Fix Pack 9.0.0.2.

IBM MQ 8.0

Apply Fix Pack 8.0.0.7.

IBM MQ Appliance 8.0

Apply Fix Pack 8.0.0.7.

Workarounds and Mitigations

IBM MQ Appliance; Affected Queue manager must be restarted.

IBM MQ 9.0.2 CD : Restart the failed command server on the queue manager.

IBM MQ 9.0 LTS : Restart the failed command server on the queue manager.

IBM MQ 8.0 : Restart the failed command server on the queue manager.

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Important note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

09 Jan 2018: Updated
06 Oct 2017: Updated at 9002 GA
15 Jun 2017: 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document information

More support for: IBM MQ
Channels LU62 / TCP

Software version: 8.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 9.0, 9.0.0.1, 9.0.1, 9.0.2

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows

Software edition: All Editions

Reference #: 2003510

Modified date: 09 January 2018