Medium Severity

Security Bulletin: IBM MQ is vulnerable to a denial of service attack caused by an abend while processing messages. (CVE-2019-4560)

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An issue was found within the IBM MQ message processing code that results in a abend wile processing a message that was placed on a queue using MQPUT. An attacker could use this to execute a denial of service attack on a queue manager.

Affected product(s) and affected version(s):

Affected Product(s) Version(s)
IBM MQ 9.1 CD
IBM MQ 9.1 LTS
IBM MQ 9.0 LTS
IBM MQ 8.0

Refer to the following reference URLs for remediation and additional vulnerability details:  
Source Bulletin: https://www.ibm.com/support/pages/node/1106037

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