CVE-2014-0227

java/org/apache/coyote/http11/filters/ChunkedInputFilter.java en Apache Tomcat 6.x anterior a 6.0.42, 7.x anterior a 7.0.55, y 8.x anterior a 8.0.9 no maneja correctamente los intentos de seguir leyendo datos después de un error haya ocurrido, lo que permite a atacantes remotos realizar ataques de la infiltración de solicitudes HTTP o causar una denegación de servicio (consumo de recursos) mediante la transmisión de datos con la codificación malformada de transferencias fragmentadas.

It was discovered that the ChunkedInputFilter in Tomcat did not fail subsequent attempts to read input after malformed chunked encoding was detected. A remote attacker could possibly use this flaw to make Tomcat process part of the request body as new request, or cause a denial of service.

Integer overflow in the parseChunkHeader function in java/org/apache/coyote/http11/filters/ChunkedInputFilter.java in Apache Tomcat before 6.0.40 and 7.x before 7.0.53 allows remote attackers to cause a denial of service via a malformed chunk size in chunked transfer coding of a request during the streaming of data. java/org/apache/catalina/servlets/DefaultServlet.java in the default servlet in Apache Tomcat before 6.0.40 and 7.x before 7.0.53 does not properly restrict XSLT stylesheets, which allows remote attackers to bypass security-manager restrictions and read arbitrary files via a crafted web application that provides an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity issue. Various other issues have also been addressed.