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Security Bulletin: IBM MQ Appliance is affected by an OpenLDAP vulnerability (CVE-2020-25692)

Security Bulletin


IBM MQ Appliance has resolved an OpenLDAP vulnerability.

Vulnerability Details

CVEID:   CVE-2020-25692
DESCRIPTION:   OpenLDAP is vulnerable to a denial of service, caused by a NULL pointer dereference. By sending a specially crafted TCP packet, a remote attacker could exploit this vulnerability to cause slapd to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM MQ Appliance 9.2 LTS
IBM MQ Appliance 9.2 CD
IBM MQ Appliance 9.1 LTS
IBM MQ Appliance 9.1 CD


This vulnerability is addressed under APAR IT37279.
IBM MQ Appliance version 9.1 LTS
IBM MQ Appliance version 9.1 CD
Upgrade to 9.2.2 CD interim fix firmware for IT37279, or later firmware.
IBM MQ Appliance version 9.2 LTS
IBM MQ Appliance version 9.2 CD

Workarounds and Mitigations


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Change History

24 Jun 2021: 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.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location


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Document Information

Modified date:
09 July 2021