CVE-2014-3597

Múltiples desbordamientos de buffer en la función php_parserr en ext/standard/dns.c en PHP anterior a 5.4.32 y 5.5.x anterior a 5.5.16 permiten a servidores DNS remotos causar una denegación de servicio (la caída de la aplicación) o posiblemente ejecutar código arbitrario a través de un registro DNS manipulado, relacionado con la función dns_get_record y la función dn_expand. NOTA: este problema existe debido a una solución incompleta para CVE-2014-4049.

Multiple buffer over-read flaws were found in the php_parserr() function of PHP. A malicious DNS server or a man-in-the-middle attacker could possibly use this flaw to crash a PHP application that used the dns_get_record() function to perform a DNS query.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. PHP's fileinfo module provides functions used to identify a particular file according to the type of data contained by the file. A buffer overflow flaw was found in the way the File Information extension processed certain Pascal strings. A remote attacker able to make a PHP application using fileinfo convert a specially crafted Pascal string provided by an image file could cause that application to crash. Multiple flaws were found in the File Information extension regular expression rules for detecting various files. A remote attacker could use either of these flaws to cause a PHP application using fileinfo to consume an excessive amount of CPU.