CVE-2016-9936

La implementación no serializada en ext/standard/var.c en PHP 7.x en versiones anteriores a 7.0.14 permite a atacantes remotos provocar una denegación de servicio (uso después de liberación) o posiblemente tener otro impacto no especificado a través de datos serializados manipulados. NOTA: esta vulnerabilidad existe por una reparación incompleta de la CVE-2015-6834.

USN-3211-1 fixed vulnerabilities in PHP by updating to the new 7.0.15 upstream release. PHP 7.0.15 introduced a regression when using MySQL with large blobs. This update fixes the problem with a backported fix. It was discovered that PHP incorrectly handled certain invalid objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that PHP incorrectly handled certain invalid objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that PHP incorrectly handled unserializing certain wddxPacket XML documents. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.