CVE-2020-13943 Apache Tomcat HTTP/2 Request mix-up Severity: Moderate
Vendor: The Apache Software Foundation Versions Affected: Apache Tomcat 10.0.0-M1 to 10.0.0-M7 Apache Tomcat 9.0.0.M5 to 9.0.37 Apache Tomcat 8.5.1 to 8.5.57 Description: If an HTTP/2 client exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources. Mitigation: - Upgrade to Apache Tomcat 10.0.0-M8 or later - Upgrade to Apache Tomcat 9.0.38 or later - Upgrade to Apache Tomcat 8.5.58 or later Credit: This issue was identified by the Apache Tomcat Security Team. References: [1] http://tomcat.apache.org/security-10.html [2] http://tomcat.apache.org/security-9.html [3] http://tomcat.apache.org/security-8.html --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
