Security Bulletin: IBM MQ is vulnerable to a denial of service attack caused by an error processing connecting applications. (CVE-2020-4870)

Summary

An error was found within the MQ queue manager channel processing code that could be exploited to cause a denial of service attack.

Vulnerability Details

CVEID:CVE-2020-4870
**DESCRIPTION:**IBM MQ is vulnerable to a denial of service attack caused by an error processing connecting applications.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190833 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

IBM MQ 9.2 LTS

Apply FixPack 9.2.0.1

IBM MQ 9.1 CD and 9.2 CD

Upgrade to IBM MQ 9.2.1

Workarounds and Mitigations

None