What is CVE-2019-4655?

CVE-2019-4655 is a vulnerability in IBM MQ that allows an authenticated user to reset client connections, leading to a denial of service attack.

How severe is CVE-2019-4655?

CVE-2019-4655 has a severity score of 4.3, which is considered medium.

Which versions of IBM MQ are affected by CVE-2019-4655?

IBM MQ versions 9.1.0.0 to 9.1.4 are affected by CVE-2019-4655.

How can an authenticated user exploit CVE-2019-4655?

An authenticated user can exploit CVE-2019-4655 by using a specially crafted request to reset client connections and cause a denial of service.

Is there a fix available for CVE-2019-4655?

Yes, IBM has released fixes for CVE-2019-4655. It is recommended to update to a fixed version of IBM MQ.

Vulnerability/
CVE-2019-4655

medium

4.3

9/12/2019

30/12/2019

17/9/2024

CVE-2019-4655

First published: Mon Dec 09 2019(Updated: )

IBM MQ 9.1.0.0, 9.1.0.1, 9.1.0.2, 9.1.0.3, 9.1.1, 9.1.2, and 9.1.3 is vulnerable to a denial of service attack that would allow an authenticated user to reset client connections due to an error within the Data Conversion routine. IBM X-Force ID: 170966.

Credit: psirt@us.ibm.com

Affected Software	Affected Version	How to fix
IBM MQ	>=9.1.0<9.1.4
IBM MQ	>=9.1.0.0<9.1.0.4
IBM MQ Appliance	>=9.1.0<9.1.4
IBM MQ Appliance	>=9.1.0.0<9.1.0.4
	<=9.1 LTS
	<=9.1 CD

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

IBM-1106529

Frequently Asked Questions

What is CVE-2019-4655?
CVE-2019-4655 is a vulnerability in IBM MQ that allows an authenticated user to reset client connections, leading to a denial of service attack.
How severe is CVE-2019-4655?
CVE-2019-4655 has a severity score of 4.3, which is considered medium.
Which versions of IBM MQ are affected by CVE-2019-4655?
IBM MQ versions 9.1.0.0 to 9.1.4 are affected by CVE-2019-4655.
How can an authenticated user exploit CVE-2019-4655?
An authenticated user can exploit CVE-2019-4655 by using a specially crafted request to reset client connections and cause a denial of service.
Is there a fix available for CVE-2019-4655?
Yes, IBM has released fixes for CVE-2019-4655. It is recommended to update to a fixed version of IBM MQ.

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agent/type
agent/first-publish-date
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/author
agent/severity
agent/description
agent/softwarecombine
agent/tags
agent/event
collector/ibm-support
source/IBM
agent/software-canonical-lookup
vendor/ibm
canonical/ibm mq
version/ibm mq/9.1.0
version/ibm mq/9.1.0.0
canonical/ibm mq appliance
version/ibm mq appliance/9.1.0
version/ibm mq appliance/9.1.0.0
canonical/ibm mq and ibm mq appliance
version/ibm mq and ibm mq appliance/9.1 lts
version/ibm mq and ibm mq appliance/9.1 cd

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