KLA11297
Multiple vulnerabilities in Apache Tomcat

Multiple serious vulnerabilities have been found in Apache Tomcat. Malicious users can exploit these vulnerabilities to obtain sensitive information and bypass security restrictions.

Below is a complete list of vulnerabilities:

1. A missing host name verification vulnerability can be exploited remotely to obtain sensitive information;
2. A vulnerability in the tracking of connection closures can be exploited remotely to bypass security restrictions.

Technical details

Vulnerability (1) appears only when using TLS with the WebSocket client was missing. Vendor have been enabled by default.

Vulnerability (2) affects only Apache Tomcat 8.5.x and 9.x

Apache Tomcat 9.x earlier than 9.0.10
Apache Tomcat 8.5.x earlier than 8.5.32
Apache Tomcat 8.0.x earlier than 8.0.53
Apache Tomcat 7.x earlier than 7.0.90

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