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Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM MQ Internet Pass Thru

Security Bulletin


There are multiple vulnerabilities in IBM® Runtime Environment Java™ Version used by IBM MQ Internet Pass Thru. These issues were disclosed as part of the IBM Java SDK updates in July 2018.

Vulnerability Details

If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether the complete list of vulnerabilities are applicable to your code. For a complete list of vulnerabilities please refer to the link for “IBM Java SDK Security Bulletin" located in the “References” section for more information.

CVEID: CVE-2018-1656
DESCRIPTION: The IBM Java Runtime Environment''s Diagnostic Tooling Framework for Java (DTFJ) does not protect against path traversal attacks when extracting compressed dump files.
CVSS Base Score: 7.4
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID: CVE-2018-12539
DESCRIPTION: Eclipse OpenJ9 could allow a local attacker to gain elevated privileges on the system, caused by the failure to restrict the use of Java Attach API to connect to an Eclipse OpenJ9 or IBM JVM on the same machine and use Attach API operations to only the process owner. An attacker could exploit this vulnerability to execute untrusted native code and gain elevated privileges on the system.
CVSS Base Score: 8.4
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM SDK, Java Technology Edition, Version 7 Service Refresh 10 Fix Pack 30 (or later) and earlier releases provided by WebSphere MQIPT 2.1 on all platforms.


A JRE update for MQIPT contains fixes for these vulnerabilities and can be downloaded from the MS81: WebSphere MQ Internet Pass-Thru SupportPac page, via the Download package link.

Users can follow the instructions contained in Instructions for manually updating the JRE within an MQIPT V2.1 Installation.

Please note: Users of MQIPT v2.1 on the HP-UX platform are advised that patches for these issues have not been released by the manufacturer for this JRE level (7.0) at this time. These updates will be published by IBM when they are available.

Workarounds and Mitigations


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Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

IBM Java SDK Security Bulletin



Change History

07 November 2018: Published
14/12/2018: Correction, not published

*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.

Document information

More support for: WebSphere MQ

Component: MQIPT

Software version: 2.1

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

Reference #: 0738985

Modified date: 20 December 2018