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

Subscribe to My Notifications to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide
On-line Calculator v3

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

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

Document Location

Worldwide

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"Server","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"8.0.0.0;8.0.0.1;8.0.0.2;8.0.0.3;8.0.0.4;8.0.0.5;8.0.0.6;8.0.0.7;8.0.0.8;8.0.0.9;8.0.0.10;8.0.0.11;8.0.0.12;9.1.0.0;9.1.0.1;9.1.0.2;9.1.0.3;9.1.1;9.1.2;9.1.3;9.0.0.0;9.0.0.1;9.0.0.2;9.0.0.3;9.0.0.4;9.0.0.5;9.0.0.6;9.0.0.7","Edition":"All","Line of Business":{"code":"LOB45","label":"Automation"}},{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Component":"","Platform":[{"code":"PF004","label":"Appliance"}],"Version":"8.0.0.0;8.0.0.1;8.0.0.3;8.0.0.4;8.0.0.5;8.0.0.6;8.0.0.7;8.0.0.8;8.0.0.9;8.0.0.10;8.0.0.11;8.0.0.12;9.1;9.1.0.1;9.1.0.2;9.1.0.3;9.1.1;9.1.2;9.1.3","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Tips

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)