Security Bulletin: IBM MQ is vulnerable to a denial of service (CVE-2024-40680)

Summary

IBM MQ has addressed a denial of service vulnerability.

Vulnerability Details

CVEID:CVE-2024-40680
**DESCRIPTION:**IBM MQ could allow a local user to cause a denial of service due to improper memory allocation causing a segmentation fault.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/297611 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

The following installable MQ components are affected by the vulnerability:

- Server

If you are running any of these listed components, please apply the remediation/fixes as described below. For more information on the definitions of components used in this list see <https://www.ibm.com/support/pages/installable-component-names-used-ibm-mq-security-bulletins&gt;

Remediation/Fixes

This issue was addressed under APAR IT45634.

IBM MQ version 9.3 CD

Upgrade to IBM MQ version 9.4 and apply fix pack 9.4.0.5

IBM MQ version 9.4 LTS and CD

Apply fix pack 9.4.0.5

Workarounds and Mitigations

None