Log4j in Splunk UBA 5.2.1

In Splunk UBA version 5.2.1, all Log4j related jars in the OS packages have either been removed or replaced by Reload4j besides the following. The following packages have been patched to remove vulnerable classes:

1. Log4j 1.2.x in the Impala OS library /usr/lib/impala/lib (inside the Impala container), also visible in /var/vcap/store/docker/overlay2/.../usr/lib/impala/lib/:
   1. org/apache/log4j/net/SocketAppender.class: CVE-2019-17571
   2. org/apache/log4j/net/SocketServer.class: CVE-2019-17571
   3. org/apache/log4j/net/SMTPAppender$1.class: CVE-2020-9488
   4. org/apache/log4j/net/SMTPAppender.class: CVE-2020-9488
   5. org/apache/log4j/net/JMSAppender.class: CVE-2021-4104
   6. org/apache/log4j/net/JDBCAppender.class: CVE-2022-23305
   7. org/apache/log4j/chainsaw/*.class: CVE-2022-23307
2. Log4j 2.x in the Hive OS library /usr/lib/hive/lib:
   1. org/apache/logging/log4j/core/lookup/JndiLookup.class: CVE-2021-44228
3. Non-core Log4j files which do not contain critical or high vulnerabilities.