An issue was identified with IBM MQ message processing code that could allow an authenticated attacker (with authority to connect to the queue manager and put messages) to execute a denial of service attack against the queue manager with a malformed message.
DESCRIPTION: IBM MQ is vulnerable to a denial of service attack caused by an error processing messages.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208398 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
|IBM MQ||9.0 LTS|
|IBM MQ||9.1 LTS|
|IBM MQ||9.2 LTS|
|IBM MQ||9.1 CD|
|IBM MQ||9.2 CD|
IBM MQ version 8.0
IBM MQ version 9.0 LTS
IBM MQ version 9.1 LTS
IBM MQ version 9.2 LTS
IBM MQ version 9.1 CD and 9.2 CD
Workarounds and Mitigations
Get Notified about Future Security Bulletins
18 Nov 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.
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.
22 November 2021