CVE-2020-1646

On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) crash and restart. This issue occurs only when the device is receiving and processing the BGP UPDATE for an EBGP peer. This issue does not occur when the device is receiving and processing the BGP UPDATE for an IBGP peer. However, the offending BGP UPDATE can originally come from an EBGP peer, propagates through the network via IBGP peers without causing crash, then it causes RPD crash when it is processed for a BGP UPDATE towards an EBGP peer. Repeated receipt and processing of the same specific BGP UPDATE can result in an extended Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 17.3R3-S6, 17.4R2-S7, and 18.1R3-S7. Juniper Networks Junos OS Evolved 19.2R2-EVO and later versions, prior to 19.3R1-EVO. Other Junos OS releases are not affected.

On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) crash and restart. This issue occurs only when the device is receiving and processing the BGP UPDATE for an EBGP peer. This issue does not occur when the device is receiving and processing the BGP UPDATE for an IBGP peer. However, the offending BGP UPDATE can originally come from an EBGP peer, propagates through the network via IBGP peers without causing crash, then it causes RPD crash when it is processed for a BGP UPDATE towards an EBGP peer. Repeated receipt and processing of the same specific BGP UPDATE can result in an extended Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 17.3R3-S6, 17.4R2-S7, and 18.1R3-S7. Juniper Networks Junos OS Evolved 19.2R2-EVO and later versions, prior to 19.3R1-EVO. Other Junos OS releases are not affected.

En los dispositivos Juniper Networks Junos OS y Junos OS Evolved, el procesamiento de un UPDATE específica para un peer EBGP puede conllevar a un bloqueo y reinicio del demonio del proceso de enrutamiento (RPD). Este problema se produce solo cuando el dispositivo está recibiendo y procesando la BGP UPDATE para un peer EBGP. Este problema no se produce cuando el dispositivo recibe y procesa el BGP UPDATE para un peer IBGP. Sin embargo, el BGP UPDATE ofensivo puede provenir originalmente desde un peer EBGP, se propaga por medio de la red por medio de los peer IBGP sin causar un bloqueo, luego causa un bloqueo de RPD cuando es procesado para un BGP UPDATE hacia un peer EBGP. La recepción y el procesamiento repetido de la misma BGP UPDATE específica pueden resultar en una condición extendida de Denegación de Servicio (DoS). Este problema afecta a: Juniper Networks Junos OS: 17.3R3-S6, 17.4R2-S7 y 18.1R3-S7. Juniper Networks Junos OS Evolved 19.2R2-EVO y versiones posteriores, anteriores a 19.3R1-EVO. Otras versiones del Junos OS no están afectadas