Security Bulletin: IBM MQ Appliance is affected by a denial of service vulnerability (CVE-2024-2511)

Summary

IBM MQ Appliance has addressed an OpenSSL denial of service vulnerability.

Vulnerability Details

CVEID:CVE-2024-2511
**DESCRIPTION:**OpenSSL is vulnerable to a denial of service, caused by improper server configuration validation. By using a specially crafted server configuration, a remote attacker could exploit this vulnerability to cause unbounded memory growth, and results in a denial of service condition.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/287215 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

This vulnerability is addressed under APAR IT46074

IBM strongly recommends addressing the vulnerability now.

IBM MQ Appliance version 9.3 LTS

Apply IBM MQ Appliance 9.3.0.20 fix pack, or later firmware.

IBM MQ Appliance version 9.3 CD

Apply IBM MQ Appliance 9.3.5.2 cumulative security update, or later firmware.

Workarounds and Mitigations

None