CVE-2014-0075

Desbordamiento de enteros en la función parseChunkHeader en java/org/apache/coyote/http11/filters/ChunkedInputFilter.java en Apache Tomcat anterior a 6.0.40, 7.x anterior a 7.0.53 y 8.x anterior a 8.0.4 permite a atacantes remotos causar una denegación de servicio (consumo de recursos) a través de un tamaño de fragmento malformado en una codificación de transferencia fragmentada de una solicitud durante la transmisión de datos.

It was discovered that JBoss Web / Apache Tomcat did not limit the length of chunk sizes when using chunked transfer encoding. A remote attacker could use this flaw to perform a denial of service attack against JBoss Web / Apache Tomcat by streaming an unlimited quantity of data, leading to excessive consumption of server resources.

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.