CVE-2014-4721

La implementación phpinfo en ext/standard/info.c en PHP anterior a 5.4.30 y 5.5.x anterior a 5.5.14 no asegura el uso del tipo de datos de cadenas para las variables PHP_AUTH_PW, PHP_AUTH_TYPE, PHP_AUTH_USER y PHP_SELF, lo que podría permitir a atacantes dependientes de contexto obtener información sensible de la memoria de proceso mediante el uso de el tipo de datos de enteros con valores manipulados, relacionado con una vulnerabilidad de 'confusión de tipo', tal y como fue demostrado mediante la lectura de una clave SSL privada en un entorno de alojamiento web de Apache HTTP Server con mod_ssl y un 5.3.x mod_php de PHP.

A type confusion issue was found in PHP's phpinfo() function. A malicious script author could possibly use this flaw to disclose certain portions of server memory.

The unserialize() function in PHP before 5.4.30 and 5.5.14 has a Type Confusion issue related to the SPL ArrayObject and SPLObjectStorage Types. It was discovered that PHP is vulnerable to a heap-based buffer overflow in the DNS TXT record parsing. A malicious server or man-in-the-middle attacker could possibly use this flaw to execute arbitrary code as the PHP interpreter if a PHP application uses dns_get_record() to perform a DNS query. A flaw was found in the way file parsed property information from Composite Document Files (CDF) files, where the mconvert() function did not correctly compute the truncated pascal string size. Multiple flaws were found in the way file parsed property information from Composite Document Files files, due to insufficient boundary checks on buffers. PHP contains a bundled copy of the file utility's libmagic library, so it was vulnerable to this issue. It has been updated to versions 5.5.14, which fix this issue and several other bugs. The phpinfo() function in PHP before 5.4.30 and 5.5.14 has a Type Confusion issue that can cause it to leak arbitrary process memory. Additionally, php-apc has been rebuilt against the updated php packages and the php-timezonedb packages has been upgraded to the 2014.5 version.