Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM MQ

Summary

There are multiple vulnerabilities in IBM® Runtime Environment Java™ versions 6, 7 and 8 used by IBM MQ. 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 <https://exchange.xforce.ibmcloud.com/vulnerabilities/144882&gt; 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 <https://exchange.xforce.ibmcloud.com/vulnerabilities/148389&gt; 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 MQ 9.1 Long Term Support (LTS)
Maintenance level 9.1.0.0

IBM MQ 9.0.0.x Long Term Support (LTS)
Maintenance level 9.0.0.5 and earlier

IBM MQ 9.0.x Continuous Delivery Release (CDR)
Continuous delivery update 9.0.5 and earlier

IBM MQ 8.0
Maintenance levels 8.0.0.10 and earlier

WebSphere MQ 7.5
Maintenance levels 7.5.0.8 and earlier

Remediation/Fixes

IBM MQ 9.1 Long Term Support (LTS)
Apply Fix Pack 9.1.0.1

IBM MQ 9.0.0.x Long Term Support (LTS)
Please contact IBM support to obtain ifix IT27656.

IBM MQ 9.0.x Continuous Delivery Release (CDR)

Upgrade to IBM MQ 9.1.1

Alternatively, upgrade to IBM MQ 9.1 and apply Fix Pack 9.1.0.1

IBM MQ V8.0
Apply Fix Pack 8.0.0.11

Please note: Users of MQ v8.0 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 once available.

WebSphere MQ 7.5
Apply Fix Pack 7.5.0.9

Workarounds and Mitigations

None.