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Security Bulletin: IBM MQ Channel data conversion denial of service (CVE-2016-3013)

Security Bulletin


Summary

When an Message Channel Agent removes a large message from a queue and applies data conversion to the message, the result could overflow the allocated buffer and cause the channel to end abnormally.

Vulnerability Details

CVEID: CVE-2016-3013
DESCRIPTION:
IBM MQ could allow an authenticated user to crash the MQ channel due to improper data conversion handling.
CVSS Base Score: 3.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/114276 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 MQ V9.0

IBM MQ 9.0.0.0.

IBM MQ V8.0

IBM MQ 8.0.0.5 and earlier maintenance levels.

Remediation/Fixes

IBM MQ V9.0

Apply 9.0.0.1 maintenance level.

IBM MQ V8.0

Apply 8.0.0.6 maintenance level.

Workarounds and Mitigations

None.

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Important note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

20 February 2017: Original version published
21 June 2017: V9.0 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.

Disclaimer

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.

Document information

More support for: IBM MQ
Channels LU62 / TCP

Software version: 8.0, 9.0

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows

Software edition: All Editions

Reference #: 1998661

Modified date: 22 June 2017