KLA61363
Multiple vulnerabilities in Apache Tomcat

Multiple vulnerabilities were found in Apache Tomcat. Malicious users can exploit these vulnerabilities to cause denial of service, obtain sensitive information, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. A denial of service vulnerability in HTTP/2 protocol can be exploited remotely to cause denial of service.
2. A denial of service vulnerability in FileUpload can be exploited remotely to cause denial of service.
3. A information disclosure vulnerability can be exploited remotely to obtain sensitive information.
4. A improper input validation vulnerability in HTTP trailer headers can be exploited to execute arbitrary code.

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 8.5.94
Apache Tomcat 9.x earlier than 9.0.81

Update to the latest version
Tomcat 9.0 Software Downloads
Tomcat 8.5 Software Downloads