Security Bulletin: Vulnerability in IBM® Java SDK affects IBM Liberty for Java for IBM Cloud due to CVE-2022-40609

Summary

There is a vulnerability in the IBM® SDK, Java™ Technology Edition that is shipped with IBM Liberty for Java for IBM Cloud. The CVE(s) listed in this document might affect some configurations of IBM Liberty for Java for IBM Cloud. This product has addressed the applicable CVE. If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether this vulnerability is applicable to your code.

Vulnerability Details

CVEID:CVE-2022-40609
**DESCRIPTION:**IBM SDK, Java Technology Edition 7.1.5.18 and 8.0.8.0 could allow a remote attacker to execute arbitrary code on the system, caused by an unsafe deserialization flaw. By sending specially-crafted data, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 236069.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/236069 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

To upgrade to Liberty for Java for IBM Cloud v4.2-20230619-0514 or higher, you must re-stage or re-push your application

To find the current version of Liberty for Java for 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 similar lines:

{“detected_buildpack”:“Liberty for Java™ (WAR, liberty-xxx, v4.2-20230619-0514, xxx, 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