CVE-2020-9493: Apache Chainsaw: Java deserialization in Chainsaw

[Robert Middleton <rmiddleton () apache org>]

Reply-to: general () logging apache org

Description:

A deserialization flaw was found in Apache Chainsaw versions prior to
2.1.0 which could lead to malicious code execution.

Mitigation:

Don't configure Chainsaw to read serialized log events.  Use a
different receiver, such as XMLSocketReceiver

Credit:

This issue was reported by @kingkk