Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK affects Liberty for Java for IBM Cloud April 2018 CPU

Summary

There are multiple vulnerabiltities in the IBM® SDK Java™ Technology Edition that is shipped with IBM WebSphere Application Server. These issues were disclosed as part of the IBM Java SDK updates in April 2018. These may affect some configurations of IBM WebSphere Application Server Traditional, IBM WebSphere Application Server Liberty and IBM WebSphere Application Server Hypervisor Edition.

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-2018-2783**
DESCRIPTION:** An unspecified vulnerability related to the Java SE Security component could allow an unauthenticated attacker to cause high confidentiality impact, high integrity impact, and no availability impact.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/141939 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2018-2800**
DESCRIPTION:** An unspecified vulnerability related to the Java SE RMI component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base Score: 4.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/141956 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)

Affected Products and Versions

This vulnerability affects all versions of Liberty for Java in IBM Cloud up to and including v3.21.

Remediation/Fixes

To upgrade to Liberty for Java v3.22-20180601-1200 or higher, you must re-stage or re-push your application.

To find the current version of Liberty for Java in IBM Cloud being used, from the command-line Cloud Foundry client by running the following commands:

cf ssh <appname> -c cat “staging_info.yml”

Look for the following lines:

{“detected_buildpack”:“Liberty for Java™ (WAR, liberty-18.0.0_1, buildpack-v3.22-20180601-1200, ibmjdk-1.8.0_20180214, env)”,“start_command”:“.liberty/initial_startup.rb”}

To re-stage your application using the command-line Cloud Foundry client, use the following command:

cf restage <appname>

To re-push your application using the command-line Cloud Foundry client, use the following command:

cf push <appname>

Workarounds and Mitigations

none

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

IBM Java SDK Security Bulletin

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

15 June 2018: original document 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.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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