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AUSCERT External Security Bulletin Redistribution
Security Bulletin: IBM WebSphere MQ Invalid client protocol
flows could cause denial of service (CVE-2016-0379)
21 September 2016
AusCERT Security Bulletin Summary
Product: IBM WebSphere MQ
Operating System: AIX
Impact/Access: Denial of Service -- Existing Account
CVE Names: CVE-2016-0379
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Security Bulletin: IBM WebSphere MQ Invalid client protocol flows could cause
denial of service (CVE-2016-0379)
More support for:
AIX, HP-UX, IBM i, Linux, Solaris, Windows
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.
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 126.96.36.199 through 188.8.131.52 maintenance levels
IBM WebSphere MQ 8.0
IBM WebSphere MQ 184.108.40.206 through 220.127.116.11 maintenance levels
IBM WebSphere MQ 7.5
Apply IBM WebSphere MQ 18.104.22.168 or later maintenance
IBM WebSphere 8.0
Apply IBM WebSphere MQ 22.214.171.124 or later maintenance
Workarounds and Mitigations
Get Notified about Future Security Bulletins
to be notified of important product support alerts like this.
Complete CVSS v3 Guide
On-line Calculator v3
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
2 June 2016: Original version published
20 September 2016: Details of 126.96.36.199 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.
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