Security Bulletin: IBM MQ Appliance vulnerable to a denial of service attack (CVE-2021-29843)

Summary

IBM MQ Appliance has resolved a denial of service vulnerability.

Vulnerability Details

CVEID:CVE-2021-29843
**DESCRIPTION:**IBM MQ is vulnerable to a denial of service attack caused by an issue processing message properties.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205203 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

This vulnerability is addressed under APAR IT35489.

IBM MQ Appliance version 9.1 LTS

Apply fixpack 9.1.0.9, or later firmware.

IBM MQ Appliance version 9.1 CD

Upgrade to 9.2.3 iFix IT35489, or later firmware.

IBM MQ Appliance version 9.2 LTS

Apply fixpack 9.2.0.3, or later firmware.

IBM MQ Appliance version 9.2 CD

Apply iFix IT35489, or later firmware.

Workarounds and Mitigations

None