IBM Support

Security Bulletin: IBM MQ and IBM MQ Appliance are vulnerable to a denial of service attack caused by a memory leak in the clustering code. (CVE-2019-4141)

Security Bulletin


Summary

A vulnerability was found in the clustering code that caused a memory leak. This could be exploited by an attacker to execute a denial of service attack against a queue manager.

Vulnerability Details

CVEID: CVE-2019-4141
DESCRIPTION: IBM MQ is vulnerable to a denial of service attack caused by a memory leak in the clustering code.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/158337 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM WebSphere MQ V7.1
versions 7.1.0.0 - 7.1.0.9
IBM WepSphere MQ V7.5
versions 7.5.0.0 - 7.5.0.9
IBM MQ and IBM MQ Appliance V8
versions 8.0.0.0 - 8.0.0.11
 
IBM MQ V9 LTS
versions 9.0.0.0 - 9.0.0.6
 
IBM MQ and IBM MQ Appliance v9.1 LTS
versions 9.1.0.0 - 9.1.0.2
 
IBM MQ and IBM MQ Appliance v9.1 CD
versions 9.1.1 - 9.1.2

Remediation/Fixes

IBM WebSphere MQ V7.1
Contact IBM Support requesting a fix for APAR IT27859
IBM WepSphere MQ V7.5
Contact IBM Support requesting a fix for APAR IT27859
IBM MQ and IBM MQ Appliance V8
 
IBM MQ V9 LTS
 
IBM MQ and IBM MQ Appliance V9.1 LTS
 
IBM MQ and IBM MQ Appliance V9.1 CD
Upgrade to IBM MQ 9.1.3

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

25th September 2019: Original version published

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

Advisory: 15452
MQ Product Record: 132858
MQ Appliance Product Record: 132859

Document Location

Worldwide

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Document Information

Modified date:
25 September 2019

UID

ibm10876772

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