CVE-2020-3338

A vulnerability in the Protocol Independent Multicast (PIM) feature for IPv6 networks (PIM6) of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper error handling when processing inbound PIM6 packets. An attacker could exploit this vulnerability by sending multiple crafted PIM6 packets to an affected device. A successful exploit could allow the attacker to cause the PIM6 application to leak system memory. Over time, this memory leak could cause the PIM6 application to stop processing legitimate PIM6 traffic, leading to a DoS condition on the affected device.

A vulnerability in the Protocol Independent Multicast (PIM) feature for IPv6 networks (PIM6) of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper error handling when processing inbound PIM6 packets. An attacker could exploit this vulnerability by sending multiple crafted PIM6 packets to an affected device. A successful exploit could allow the attacker to cause the PIM6 application to leak system memory. Over time, this memory leak could cause the PIM6 application to stop processing legitimate PIM6 traffic, leading to a DoS condition on the affected device.

Una vulnerabilidad en la funcionalidad Protocol Independent Multicast (PIM) para redes IPv6 (PIM6) de Cisco NX-OS Software, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad es debido a un manejo inapropiado de errores al procesar paquetes PIM6 entrantes. Un atacante podría explotar esta vulnerabilidad mediante el envío de varios paquetes PIM6 diseñados hacia un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar que la aplicación PIM6 filtre memoria del sistema. Con el tiempo, esta pérdida de memoria podría causar que la aplicación PIM6 dejara de procesar el tráfico PIM6 legítimo, conllevando a una condición de DoS en el dispositivo afectado