Security Bulletin: IBM MQ is vulnerable to a denial of service attack due to an error in the Channel processing function. (CVE-2019-4762)

Security Bulletin

Summary

An error was identified in the channel processing logic that means a remote attacker could execute a denial of service attack against a queue manager.

Vulnerability Details

CVEID: CVE-2019-4762
DESCRIPTION: IBM MQ is vulnerable to a denial of service attack due to an error in the Channel processing function.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/173625 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	9.0 LTS
IBM MQ and IBM MQ Appliance	9.1 LTS
IBM MQ and IBM MQ Appliance	9.1 CD

Remediation/Fixes

IBM MQ 9.0 LTS

Apply Fix Pack 9.0.0.9

IBM MQ and IBM MQ Appliance 9.1 LTS

Apply Fix Pack 9.1.0.3

IBM MQ and IBM MQ Appliance 9.1 CD

Upgrade to IBM MQ 9.1.5

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

7 April 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

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

Document Location

Worldwide

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Tips

Security Bulletin: IBM MQ is vulnerable to a denial of service attack due to an error in the Channel processing function. (CVE-2019-4762)