Intel se pronuncia sobre fallos de seguridad en su sistema

07 Enero, 2018, 01:37 | Author: Enrique Watson

¿Cómo puedo protegerme del fallo Meltdown? En palabras sencillas, es una forma de acceder a partes sensibles de la memoria (que puede contener información cifrada, por ejemplo). Las soluciones para Linux y Windows ya están disponibles. Engaña a otras aplicaciones para que accedan a registros arbitrarios de su memoria de forma invisible y afecta a todos los equipos con procesadores de Intel, AMD y ARM: ordenadores, tablets, teléfonos inteligentes, etc.

Los fabricantes de procesadores se encontraban trabajando desde hace algún tiempo con los diseñadores de sistemas operativos para producir parches que sellaran esta vulnerabilidad.

NCCIC alienta a los usuarios y administradores a consultar a sus proveedores de sistemas operativos para obtener la información más reciente.

Esta actualización deberá instalarse en computadoras con Windows 7, 8 y 10 por lo cual el resto de los fabricantes como Apple y Linux deberán desarrollar sus propias herramientas de contención para proteger a los usuarios de sus sistemas operativos.

The Register cree que el fallo estaría en el hardware de Intel con tecnología x86-64, que es la versión 64 bits de los microchips desarrollados por la compañía y que llegaron para sustituir a los procesadores de 32 bits.

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"Meltdown" es una vulnerabilidad de los procesadores Intel, los más extendidos en el mundo, que permite a los piratas informáticos robar datos almacenados en los navegadores (Chrome, Firefox, Explorer.).

"Spectre" aprovecha un fallo del "aislamiento de la memoria" entre las aplicaciones.

Por ahora, no hay ningún ataque confirmado en los clientes de Microsoft que explotan las vulnerabilidades. La empresa comenzó a ofrecer actualizaciones de 'software' y 'firmware' para mitigar esta vulnerabilidad y afirmó que, junto con otras compañías, se divulgarán más correcciones "la próxima semana". Pero todo parece indicar que estas técnicas no han sido usadas.

Spectre y Meltdown, los fallos en los chips de AMD, ARM e Intel siguen dando dolores de cabeza, aunque esta última empresa ha dado a conocer las pruebas que aseguran que una de las principales preocupaciones para los usuarios no se cumplirá: los parches para computadoras y móviles no afectarán su rendimiento. Debido al hecho de que la vulnerabilidad existe en la arquitectura de la CPU en lugar de en el software, es posible que el parche no solucione completamente estas vulnerabilidades en todos los casos.

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