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Security Bulletin: IBM MQ Advanced Message Security on IBM i platform is affected by an issue in OpenSSL (CVE-2024-2511)

Security Bulletin


Summary

An issue was identified with OpenSSL, which IBM MQ on the IBM i platform uses within the Advanced Message Security feature to provide cryptographic functionality. It is not used for transport layer security (TLS) functionality for IBM MQ channel connections, which is provided by the IBM i SystemTLS libraries.

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

Affected Product(s) Version(s)
IBM MQ 9.0 LTS
IBM MQ 9.1 LTS
IBM MQ 9.2 LTS
IBM MQ 9.3 LTS
IBM MQ 9.4 LTS

The following installable MQ components are affected by the vulnerability:

- Advanced Message Security (AMS)

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

Remediation/Fixes

This issue was addressed under APAR IT46080.

IBM MQ version 9.0 LTS

Apply cumulative security update 9.0.0.27 

IBM MQ version 9.1 LTS

Apply cumulative security update 9.1.0.23 

IBM MQ version 9.2 LTS

Apply cumulative security update 9.2.0.27  

IBM MQ version 9.3 LTS

Apply cumulative security update 9.3.0.21  

IBM MQ version 9.4 LTS

Apply fix pack 9.4.0.5 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

04 Sept 2024: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
05 September 2024

UID

ibm17167211