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Security Bulletin: IBM WebSphere MQ Invalid client protocol flows could cause denial of service (CVE-2016-0379)

Security Bulletin


An invalid MQ client protocol flow could cause a memory access violation on the server which could impact other channels running in the same process.

Vulnerability Details

CVEID: CVE-2016-0379
DESCRIPTION: IBM WebSphere MQ could allow an authenticated user with queue manager rights to cause a denial of service to channels due to incorrect handling of MQ protocol flows.
CVSS Base Score: 3.1
CVSS Temporal Score: See 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:L)

Affected Products and Versions

IBM WebSphere MQ 7.5

IBM WebSphere MQ through maintenance levels

IBM WebSphere MQ 8.0

IBM WebSphere MQ through maintenance levels


IBM WebSphere MQ 7.5

Apply IBM WebSphere MQ or later maintenance

IBM WebSphere 8.0

Apply IBM WebSphere MQ or later maintenance

Workarounds and Mitigations


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Change History

2 June 2016: Original version published
20 September 2016: Details of fixpack added

*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.


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.

[{"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Clients","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;7.5","Edition":"All Editions","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
15 June 2018