CVE-2022-20870

A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Una vulnerabilidad en la función de procesamiento de paquetes MPLS de salida del software Cisco IOS XE para los conmutadores de la familia Cisco Catalyst 3650, Catalyst 3850 y Catalyst 9000 podría permitir a un atacante remoto no autenticado causar una recarga inesperada del dispositivo afectado, resultando en una situación de denegación de servicio (DoS). Esta vulnerabilidad es debido a que la comprobación de entrada del tráfico IPv4 es insuficiente. Un atacante podría explotar esta vulnerabilidad mediante el envío de un paquete malformado desde una interfaz MPLS afectada. Un ataque con éxito podría permitir al atacante causar la recarga del dispositivo, resultando en una condición de DoS