Security Bulletin: IBM MQ AMQP Channels could allow an authenticated user to cause a denial of service due to an issue processing messages. (CVE-2020-4931)

Summary

An issue was found within the AMQP Channel function of the IBM MQ queue manager which could allow an attacker to execute a denial of service attack against 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 issue is addressed under APAR IT34485.

IBM MQ v8

Apply FixPack 8.0.0.16

IBM MQ v9.0 LTS

Apply FixPack 9.0.0.11

IBM MQ v9.1 LTS

Apply FixPack 9.1.0.7

IBM MQ v9.2 LTS

Apply iFix for APAR IT34485

IBM MQ v9.2 CD

Upgrade to IBM MQ 9.2.1

Workarounds and Mitigations

None