CVE-2018-4038

An exploitable arbitrary write vulnerability exists in the open document format parser of the Atlantis Word Processor, version 3.2.7.2, while trying to null-terminate a string. A specially crafted document can allow an attacker to pass an untrusted value as a length to a constructor. This constructor will miscalculate a length and then use it to calculate the position to write a null byte. This can allow an attacker to corrupt memory, which can result in code execution under the context of the application. An attacker must convince a victim to open a specially crafted document in order to trigger this vulnerability.

An exploitable arbitrary write vulnerability exists in the open document format parser of the Atlantis Word Processor, version 3.2.7.2, while trying to null-terminate a string. A specially crafted document can allow an attacker to pass an untrusted value as a length to a constructor. This constructor will miscalculate a length and then use it to calculate the position to write a null byte. This can allow an attacker to corrupt memory, which can result in code execution under the context of the application. An attacker must convince a victim to open a specially crafted document in order to trigger this vulnerability.

Existe una vulnerabilidad explotable de escritura arbitraria en el analizador de ODF (Open Document Format) de Word de Atlantis Word Processor 3.2.7.2 al internar terminar una cadena en NULL. Un documento especialmente manipulado puede permitir que un atacante pase un valor no fiable como longitud para un constructor. Dicho constructor calculará erróneamente una longitud y, después, la empleará para calcular la posición para escribir un byte null. Esto puede permitir que un atacante corrompa la memoria, lo que resulta en la ejecución de código bajo el contexto de la aplicación. Un atacante debe convencer a una víctima para que abra un documento especialmente manipulado para provocar esta vulnerabilidad.