What is CVE-2020-4319?

CVE-2020-4319 is a vulnerability found in IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop, which could allow an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic.

What is the severity of CVE-2020-4319?

The severity of CVE-2020-4319 is rated as medium (4.3).

Which software versions are affected by CVE-2020-4319?

IBM MQ Appliance versions between 8.0 and 8.0.0.15, 9.1 LTS versions between 9.1.0.0 and 9.1.0.6, and 9.1 CD versions are affected by CVE-2020-4319.

How can an authenticated user exploit CVE-2020-4319?

An authenticated user can exploit CVE-2020-4319 by exploiting a data leak from an error message within the pre-v7 pubsub logic.

Is there a fix available for CVE-2020-4319?

Yes, IBM has provided fixes for the affected versions of IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop to address the vulnerability.

Vulnerability/
CVE-2020-4319

medium

4.3

CWE

209

23/7/2020

28/7/2020

16/9/2024

CVE-2020-4319

First published: Thu Jul 23 2020(Updated: )

IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 LTS, and 9.1 CD could allow under special circumstances, an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic. IBM X-Force ID: 177402.

Credit: psirt@us.ibm.com

Affected Software	Affected Version	How to fix
IBM MQ Appliance	>=8.0<8.0.0.15
IBM MQ Appliance	>=9.1.0.0<9.1.0.6
IBM MQ Appliance	>=9.1.0.0<9.2.0.0
	<=8.0
	<=9.1 LTS
	<=9.1 CD

Remedy

https://www.ibm.com/support/pages/node/6252777

Never miss a vulnerability like this again

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

IBM-6252777

Frequently Asked Questions

What is CVE-2020-4319?
CVE-2020-4319 is a vulnerability found in IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop, which could allow an authenticated user to obtain sensitive information due to a data leak from an error message within the pre-v7 pubsub logic.
What is the severity of CVE-2020-4319?
The severity of CVE-2020-4319 is rated as medium (4.3).
Which software versions are affected by CVE-2020-4319?
IBM MQ Appliance versions between 8.0 and 8.0.0.15, 9.1 LTS versions between 9.1.0.0 and 9.1.0.6, and 9.1 CD versions are affected by CVE-2020-4319.
How can an authenticated user exploit CVE-2020-4319?
An authenticated user can exploit CVE-2020-4319 by exploiting a data leak from an error message within the pre-v7 pubsub logic.
Is there a fix available for CVE-2020-4319?
Yes, IBM has provided fixes for the affected versions of IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop to address the vulnerability.

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version/ibm mq appliance/9.1 lts
version/ibm mq appliance/9.1 cd

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