Security Bulletin: Log4j Vulnerability ( CVE-2021-44228 ) in IBM Informix Dynamic Server in Cloud Pak for Data

Summary

This Security Alert addresses CVE-2021-44228, a vulnerability in Apache Log4j. Versions Affected: All Apache Log4j2 <=2.14.1 on IBM Informix Dynamic Server in Cloud Pak for Data

Vulnerability Details

CVEID:CVE-2021-44228
**DESCRIPTION:**Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the failure to protect against attacker controlled LDAP and other JNDI related endpoints by JNDI features. By sending a specially crafted code string, an attacker could exploit this vulnerability to load arbitrary Java code on the server and take complete control of the system. Note: The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

None

Workarounds and Mitigations

IBM strongly recommends addressing the vulnerability now by executing these manual steps.

1. Upgrade your Informix 4.0.0 deployments to 4.0.1
2. Install the Informix operator version 4.0.1 (included in the CASE ibm-informix-operator-bundle-4.0.3.tgz)
3. Navigate to the official documentation for the Informix CP4D service (<https://www.ibm.com/docs/en/cloud-paks/cp-data/4.0?topic=services-informix&gt;) and follow the steps in the “Upgrading Informix” to update any deployed Informix custom resource from 4.0.0 to 4.0.1