Security Bulletin: IBM MQ Appliance is affected by a denial of service vulnerability (CVE-2020-4931)

Summary

IBM MQ Appliance has resolved a denial of service vulnerability for AMQP channels.

Vulnerability Details

CVEID:CVE-2020-4931
**DESCRIPTION:**IBM MQ AMQP Channels could allow an authenticated user to cause a denial of service due to an issue processing messages.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191747 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

This vulnerability is addressed by APAR IT34885.
IBM MQ Appliance 9.1 LTS

Apply fixpack 9.1.0.7, or later maintenance.

IBM MQ Appliance 9.1 CD

Upgrade to 9.2.1 CD, or later.

IBM MQ Appliance 9.2 LTS

Apply ifix for APAR IT34885, or later maintenance.

Workarounds and Mitigations

None