CVE-2022-40304

Se descubrió un problema en libxml2 antes de la versión 2.10.3. Ciertas definiciones de entidades XML no válidas pueden dañar la clave de una tabla hash, lo que podría provocar errores lógicos posteriores. En un caso, se puede provocar un double-free.

A flaw was found in libxml2. When a reference cycle is detected in the XML entity cleanup function the XML entity data can be stored in a dictionary. In this case, the dictionary becomes corrupted resulting in logic errors, including memory errors like double free.

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 2.4.51 Service Pack 1 serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.51, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include buffer over-read, buffer overflow, bypass, code execution, denial of service, double free, integer overflow, out of bounds read, and use-after-free vulnerabilities.