Security Bulletin: IBM MQ and IBM MQ Appliance are vulnerable to a memory leak in pubsub (CVE-2017-1786)

Summary

IBM MQ queue managers handling publish subscribe messaging might leak memory in response to specific application requests, resulting in a loss of service.

Vulnerability Details

CVEID: CVE-2017-1786**
DESCRIPTION:** IBM MQ under special circumstances could allow an authenticated user to consume all resources due to a memory leak resulting in service loss.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/136975 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 MQ v8

• Maintenance levels 8.0.0.0 - 8.0.0.8

IBM MQ v9 LTS

• Maintenance levels 9.0.0.0 - 9.0.0.2

IBM MQ v9 CD

• Maintenance levels 9.0.1 - 9.0.4

IBM MQ Appliance v8

• Maintenance levels 8.0.0.0 - 8.0.0.8

IBM MQ Appliance v9 CD

• Maintenance levels 9.0.1 - 9.0.4

Remediation/Fixes

IBM MQ v8 and IBM MQ Appliance v8

• Apply Fixpack 8.0.0.9

IBM MQ v9 LTS

• Apply Fixpack 9.0.0.3

IBM MQ v9 CD and IBM MQ Appliance v9 CD

• Upgrade to 9.0.5