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Security Bulletin: WebSphere MQ Internet Pass-Thru is affected by a vulnerability in IBM Java Runtime

Security Bulletin


WebSphere MQ Internet Pass-Thru has addressed the following vulnerability in IBM® Runtime Environment Java™ Version These issues were disclosed as part of the IBM Java SDK updates in January 2019.

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-2018-12547
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a buffer overflow, caused by improper bounds checking by the jio_snprintf() and jio_vsnprintf() functions. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See for more information
 CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/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 35 and earlier releases provided by WebSphere MQIPT 2.1 on Windows, AIX and Linux.


These vulnerabilities are fixed in IBM Java Version 7.0 Service Refresh 10 Fix Pack 40 on Windows, AIX and Linux. A JRE update to this level of Java for MQIPT is available to download from the MS81: WebSphere MQ Internet Pass-Thru SupportPac page, via the Download package link. The JRE update files are named ms81_jre_platform_70sr10fp40, where platform is the operating system and architecture where MQIPT is running.

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

Workarounds and Mitigations


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*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.

Internal Use Only

Advisory ID    15330
Product Record ID    131541

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Document Information

Modified date:
10 September 2019