Security Alert (A20-06-11): Vulnerability in Apache Tomcat

Description:

Apache Software Foundation has released new versions of Apache Tomcat 8.5 and 9 to address a vulnerability in the Apache Tomcat. A remote attacker may send a specially crafted sequence of HTTP/2 requests to exploit the vulnerability.

Affected Systems:

• Apache Tomcat version 8.5.0 to 8.5.55
• Apache Tomcat version 9.0.0.M1 to 9.0.35

Impact:

A successful exploitation of the vulnerability could lead to denial of service on an affected system.

Recommendation:

Apache Software Foundation has released new version of the products to address the issue and they can be downloaded at the following URLs:

• https://tomcat.apache.org/download-80.cgi
• https://tomcat.apache.org/download-90.cgi

More Information:

https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.56
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.36
https://www.hkcert.org/my_url/en/alert/20062901
https://www.us-cert.gov/ncas/current-activity/2020/06/26/apache-releases-security-advisory-apache-tomcat
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11996