Security Bulletin: Vulnerability in Apache Log4j (CVE-2021-45105) affects the IBM Performance Management product

Summary

The APM v8.1.4.0 Server installs an Online Help application that contains Log4j v2.3. A vulnerability was found in this version of Log4j that is documented by CVE-2021-44228 and fixed in Log4j v2.17.1.

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)

Affected Products and Versions

Remediation/Fixes

The vulnerable version of Log4j v2.3 can be replaced by Log4j v2.17.1 by following the procedure described at <https://www.ibm.com/support/pages/node/6526216&gt;

Workarounds and Mitigations

None