KLA12083
DoS vulnerabilities in Apache Tomcat

DoS vulnerabilities were found in Apache Tomcat. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. DoS vulnerability in h2c direct connection can be exploited to cause denial of service.
2. DoS vulnerability in WebSocket frame can be exploited to cause denial of service.

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Apache Tomcat 8.5.x earlier than 8.5.57
Apache Tomcat 9.x earlier than 9.0.37

Update to the latest version
Tomcat 8.5 Software Downloads
Tomcat 9 Software Downloads