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Security Bulletin: IBM MQ could allow an attacker to cause a denial of service due to a memory leak caused by an error creating a dynamic queue. (CVE-2020-4375)

Security Bulletin


Summary

An error was found within the Dynamic queue logic that could cause a memory leak and be exploited by an attacker to cause a denial of service attack.

Vulnerability Details

CVEID:   CVE-2020-4375
DESCRIPTION:   IBM MQ, IBM MQ Appliance, IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS could allow an attacker to cause a denial of service due to a memory leak caused by an error creating a dynamic queue. IBM X-Force ID: 179080.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179080 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM MQ 9.1 LTS
IBM MQ 9.0 LTS
IBM MQ 8.0
IBM MQ 9.1 CD
IBM WebSphere MQ 7.5
IBM WebSphere MQ 7.1

Remediation/Fixes

IBM WebSphere MQ 7.1

Contact IBM Support and request a fix for APAR IT31336

IBM WebSphere MQ 7.5

Contact IBM Support and request a fix for APAR IT31336

IBM MQ 8.0

Apply Fixpack 8.0.0.15

IBM MQ 9.0 LTS

Apply Fixpack 9.0.0.10

IBM MQ 9.1 LTS

Apply Fixpack 9.1.0.5

IBM MQ 9.1 CD

Upgrade to IBM MQ 9.2

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

04 Aug 2020: 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.

Disclaimer

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.

Document Location

Worldwide

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Document Information

Modified date:
05 August 2020

UID

ibm16255988