Fix security vulnerability reported in log4j >= 1.2, <= 1.2.27

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.