IBM Support

Security Bulletin: IBM MQ is vulnerable to a denial of service attack caused by an error processing connecting applications. (CVE-2020-4870)

Security Bulletin


Summary

An error was found within the MQ queue manager channel processing code that could be exploited to cause a denial of service attack.

Vulnerability Details

CVEID:   CVE-2020-4870
DESCRIPTION:   IBM MQ is vulnerable to a denial of service attack caused by an error processing connecting applications.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190833 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 9.2 CD
IBM MQ 9.2 LTS
IBM MQ 9.1.4 CD
IBM MQ 9.1.5 CD

Remediation/Fixes

IBM MQ 9.2 LTS

Apply FixPack 9.2.0.1

IBM MQ 9.1 CD and 9.2 CD

Upgrade to IBM MQ 9.2.1

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

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

16 Dec 2020: Initial Publication
22 Dec 2020: Added applicability for 9.1 CD

*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

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"ARM Category":[{"code":"a8m0z00000008OYAAY","label":"Connectivity->Channels"}],"Platform":[{"code":"PF002","label":"AIX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.1.0;9.2.0"}]

Document Information

Modified date:
22 December 2020

UID

ibm16386466

Page Feedback