Security Alert (A21-10-13): Vulnerability in Apache Tomcat

Description:

Apache Software Foundation has released a security advisory to address a vulnerability in the Apache Tomcat.  A remote attacker may send a specially crafted HTTP request to exploit the vulnerabilities.

Affected Systems:

• Apache Tomcat 10.1.0-M1 to 10.1.0-M5
• Apache Tomcat 10.0.0-M10 to 10.0.11
• Apache Tomcat 9.0.40 to 9.0.53
• Apache Tomcat 8.5.60 to 8.5.71

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:

• This link will open in a new windowhttps://tomcat.apache.org/download-10.cgi#8.5.72
• This link will open in a new windowhttps://tomcat.apache.org/download-10.cgi#9.0.54
• This link will open in a new windowhttps://tomcat.apache.org/download-10.cgi#10.0.12
• This link will open in a new windowhttps://tomcat.apache.org/download-10.cgi#10.1.0-M6

More Information:

• This link will open in a new windowhttps://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.72
• This link will open in a new windowhttps://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.54
• This link will open in a new windowhttps://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.12
• This link will open in a new windowhttps://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.0-M6
• This link will open in a new windowhttps://www.hkcert.org/security-bulletin/apache-tomcat-denial-of-service-vulnerability_20211018
• This link will open in a new windowhttps://us-cert.cisa.gov/ncas/current-activity/2021/10/15/apache-releases-security-advisory-tomcat
• This link will open in a new windowhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42340