CVE-2018-11763

En Apache HTTP Server, de la versión 2.4.17 a la 2.4.34, mediante el envío continuo de tramas SETTINGS grandes, un cliente puede ocupar una conexión, hilo del servidor y tiempo de CPU sin que se active ningún agotamiento del tiempo de conexión. Esto solo afecta a las conexiones HTTP/2. Una posible mitigación es no activar el protocolo h2.

This vulnerability allows remote attackers to create a denial of service condition on vulnerable installations of Apache HTTPD server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of HTTP2 headers. A crafted HTTP2 request can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.29 Service Pack 1 serves as an update to Red Hat JBoss Core Services Apache HTTP Server 2.4.29, and includes bug fixes for CVEs which are linked to in the References section. Issues addressed include bypass, denial of service, null pointer, out of bounds write, traversal, and use-after-free vulnerabilities.