CVE-2021-31370

An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2.

An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2.

Una vulnerabilidad de la lista incompleta de entradas no permitidas en el motor de reenvío de paquetes (PFE) de Juniper Networks Junos OS en las series QFX5000 y EX4600 permite a un atacante adyacente no autenticado que envía una alta tasa de tráfico de multidifusión específico causar una caída del tráfico de control recibido de la red. Esto afectará a los protocolos de control (incluidos, entre otros, los protocolos de enrutamiento) y conllevará a una Denegación de Servicio (DoS). Una recepción continuada de este tráfico de multidifusión específico creará una condición de Denegación de Servicio (DoS) sostenida. Este problema afecta a Juniper Networks Junos OS en las Series QFX5000 y EX4600: Todas las versiones anteriores a 17.3R3-S12; las versiones 17.4 anteriores a 17.4R3-S5; las versiones 18.3 anteriores a 18.3R3-S5; las versiones 18.4 anteriores a 18.4R3-S9; las versiones 19.1 anteriores a 19.1R3-S6; las versiones 19.2 anteriores a 19.2R1-S7, 19.2R3-S3; las versiones 19.3 anteriores a 19.3R2-S6, 19. 3R3-S3; versiones 19.4 anteriores a 19.4R1-S4, 19.4R3-S3; versiones 20.1 anteriores a 20.1R2-S2, 20.1R3-S1; versiones 20.2 anteriores a 20.2R3-S2; versiones 20.3 anteriores a 20.3R3; versiones 20.4 anteriores a 20.4R2-S2, 20.4R3; versiones 21.1 anteriores a 21.1R1-S1, 21.1R2