CVE-2018-17082

El componente Apache2 en PHP en versiones anteriores a la 5.6.38, versiones 7.0.x anteriores a la 7.0.32, versiones 7.1.x anteriores a la 7.1.22 y versiones 7.2.x anteriores a la 7.2.10 permite Cross-Site Scripting (XSS) mediante el cuerpo de una petición "Transfer-Encoding: chunked". Esto se debe a que bucket brigade se gestiona de manera incorrecta en la función php_handler en sapi apache2handler sapi_apache2.c.

A cross-site scripting (XSS) vulnerability in Apache2 component of PHP was found. When using 'Transfer-Encoding: chunked', the request allows remote attackers to potentially run a malicious script in a victim's browser. This vulnerability can be exploited only by producing malformed requests and it's believed it's unlikely to be used in practical cross-site scripting attack.

Multiple security issues were found in PHP, a widely-used open source denial of service/information disclosure when parsing malformed images, the Apache module allowed cross-site-scripting via the body of a insufficient input validation which can result in the execution of arbitrary shell commands in the imap_open() function and denial of service in the imap_mail() function.