|Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before
7.0.19, when sendfile is enabled for the HTTP APR or HTTP NIO
connector, does not validate certain request attributes, which allows
local users to bypass intended file access restrictions or cause a
denial of service (infinite loop or JVM crash) by leveraging an
untrusted web application.