We have nginx 0.6.x < 1.20.1 1-Byte Memory Overwrite RCE vulnerability for Elasticsearch server (v. 2.4.6) as mentioned in nginx 0.6.x < 1.20.1 1-Byte Memory Overwrite RCE | Tenable® we need to upgrade to 1.20.1 or later.
how would the process for this be? is it possible to only upgrade nginx or is their a need for elasticserach to be upgraded on compatible version as well?