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

Security Bulletin


Summary

An issue was found within the IBM MQ message processing code that results in an abend while 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.

Vulnerability Details

CVEID: CVE-2019-4560
DESCRIPTION: IBM MQ is vulnerable to a denial of service attack caused by channels processing poorly formatted messages.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166357 for the current score.
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

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

Remediation/Fixes

IBM WebSphere MQ V7.1
Contact IBM Support requesting a fix for APAR IT30070

IBM WepSphere MQ V7.5
Contact IBM Support requesting a fix for APAR IT30070

IBM MQ and IBM MQ Appliance V8
Apply FixPack 8.0.0.13

IBM MQ V9 LTS
Apply FixPack 9.0.0.8

IBM MQ and IBM MQ Appliance V9.1 LTS
Apply FixPack 9.1.0.4

IBM MQ and IBM MQ Appliance V9.1 CD
Upgrade to IBM MQ 9.1.4

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

9 Dec 2019: 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:
20 December 2019

UID

ibm11106037