Update log4j to 2.13.0(due to CVE-2019-17571)

CVE-2019-17571
moderate severity
Vulnerable versions: >= 1.2, <= 1.2.27
Patched version: No fix
Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2.17.