Security Bulletin: IBM Decision Optimization for Cloud Pak for Data is vulnerable to denial of service due to Apache Log4j (CVE-2021-45105) and arbitrary code execution due to Apache Log4j (CVE-2021-45046)

Summary

There are multiple Apache Log4j vulnerabilities (CVE-2021-45105, CVE-2021-45046) impacting IBM Decision Optimization for Cloud Pak for Data which uses Apache Log4j for logging. The fix includes Apache Log4j 2.17.

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-45046
**DESCRIPTION:**Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

IBM Decision Optimization for Cloud Pak for Data 3.5 - 3.5.10 and4.0 - 4.0.4.

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.

Upgrade to IBM Decision Optimization for Cloud Pak for Data 3.5.11,4.0.5 or higher.

Here is the detailed information on Upgrading IBM Cloud Pak for Data

Workarounds and Mitigations

None