GHSA-44qp-qhfv-c7f6 Improper Handling of Exceptional Conditions in Apache Tomcat

• Maven org.apache.tomcat:tomcat: >= 10.0.3, < 10.0.5 → fixed in 10.0.5 • Maven org.apache.tomcat:tomcat: >= 9.0.0, < 9.0.45 → fixed in 9.0.45 • Maven org.apache.tomcat:tomcat: < 8.5.65 → fixed in 8.5.65

A vulnerability in Apache Tomcat allows an attacker to remotely trigger a denial of service. An error introduced as part of a change to improve error handling during non-blocking I/O meant that the error flag associated with the Request object was not reset between requests. This meant that once a non-blocking I/O error occurred, all future requests handled by that request object would fail. Users were able to trigger non-blocking I/O errors, e.g. by dropping a connection, thereby creating the possibility of triggering a DoS. Applications that do not use non-blocking I/O are not exposed to this vulnerability. This issue affects Apache Tomcat 10.0.3 to 10.0.4; 9.0.44; 8.5.64.