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.

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support alerts like this.

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 v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

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

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

[{"Product":{"code":"SSYHRD","label":"IBM MQ"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Channels LU62 \/ TCP","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.0.2;9.0.1;9.0.0.1;9.0;8.0.0.6;8.0.0.5;8.0.0.4;8.0.0.3;8.0.0.2;8.0.0.1;8.0","Edition":"All Editions","Line of Business":{"code":"LOB45","label":"Automation"}}]

Tips

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