CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-0239 – Junos OS Evolved: Denial of Service due to receipt of specific genuine layer 2 frames.
https://notcve.org/view.php?id=CVE-2021-0239
In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit (AFT) manager process (Evo-aftmand), responsible for handling Route, Class-of-Service (CoS), Firewall operations within the packet forwarding engine (PFE) to crash and restart, leading to a Denial of Service (DoS) condition. By continuously sending this specific stream of genuine Layer 2 frames, an attacker can repeatedly crash the PFE, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R1-EVO. This issue does not affect Junos OS versions. En Juniper Networks, Junos OS Evolved, la recepción de un flujo de tramas de capa 2 genuinas específicas puede causar que el proceso de gestión Advanced Forwarding Toolkit (AFT) (Evo-aftmand), responsable de gestionar las operaciones de ruta, clase de servicio (CoS) y cortafuegos. dentro del packet forwarding engine (PFE) para bloquearse y reiniciarse, conllevando a una condición de Denegación de Servicio (DoS). • https://kb.juniper.net/JSA11134 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 5.5EPSS: 0%CPEs: 147EXPL: 0CVE-2021-0238 – Junos OS: MX Series: Executing CLI command repetitively may cause the system to run out of disk space
https://notcve.org/view.php?id=CVE-2021-0238
When a MX Series is configured as a Broadband Network Gateway (BNG) based on Layer 2 Tunneling Protocol (L2TP), executing certain CLI command may cause the system to run out of disk space, excessive disk usage may cause other complications. An administrator can use the following CLI command to monitor the available disk space: user@device> show system storage Filesystem Size Used Avail Capacity Mounted on /dev/gpt/junos 19G 18G 147M 99% /.mount <<<<< running out of space tmpfs 21G 16K 21G 0% /.mount/tmp tmpfs 5.3G 1.7M 5.3G 0% /.mount/mfs This issue affects Juniper Networks Junos OS on MX Series: 17.3R1 and later versions prior to 17.4R3-S5, 18.1 versions prior to 18.1R3-S13, 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R1-S1, 20.4R2; This issue does not affect Juniper Networks Junos OS versions prior to 17.3R1. Cuando una Serie MX se configura como Broadband Network Gateway (BNG) basada en el protocolo Layer 2 Tunneling Protocol (L2TP), la ejecución de determinados comandos de la CLI puede hacer que el sistema se quede sin espacio en el disco, el uso excesivo del disco puede causar otras complicaciones. Un administrador puede usar el siguiente comando CLI para monitorear el espacio disponible en disco: user@device> show system storage Filesystem Size Used Avail Capacity Mounted on /dev/gpt/junos 19G 18G 147M 99% /.mount <<<<< running out of space tmpfs 21G 16K 21G 0% /.mount/tmp tmpfs 5.3G 1.7M 5.3G 0% /.mount/mfs. Este problema afecta a Juniper Networks Junos OS en la serie MX: 17.3R1 y posteriores, versiones anteriores a 17.4R3-S5, versiones 18.1 anteriores a 18.1R3-S13, versiones 18.2 anteriores a 18.2R3-S7; versiones 18.3 anteriores a 18.3R3-S4; versiones 18.4 anteriores a 18.4R3-S7; versiones 19.1 anteriores a 19.1R3-S4; 19. • https://kb.juniper.net/JSA11133 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.5EPSS: 0%CPEs: 226EXPL: 0CVE-2021-0237 – Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration
https://notcve.org/view.php?id=CVE-2021-0237
On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager (FXPC) process may crash and restart upon receipt of specific layer 2 frames. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4, 17.4R3-S5; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2; En Juniper Networks Serie EX4300-MP, Serie EX4600, Serie EX4650, Serie QFX5K implementadas como un Virtual Chassis con una configuración de circuito de capa 2 específica, el proceso del Packet Forwarding Engine manager (FXPC) puede bloquearse y reiniciarse al recibir tramas de capa 2 específicas. La recepción y el procesamiento continuo de este paquete crearán una condición sostenida de Denegación de Servicio (DoS). Este problema afecta a: Juniper Networks Junos OS en las versiones Serie EX4300-MP, Serie EX4600, Serie EX4650, Serie QFX5K versiones 15.1 anteriores a 15.1R7-S9; versiones 17.3 anteriores a 17.3R3-S11; versiones 17.4 anteriores a 17.4R2-S13, 17.4R3-S4, 17.4R3-S5; versiones 18.2 anteriores a 18.2R3-S8; versiones 18.3 anteriores a 18.3R3-S4; versiones 18.4 anteriores a 18.4R2-S7, 18.4R3-S6; versiones 19.1 anteriores a 19.1R3-S4; versiones 19.2 anteriores a 19.2R1-S6, 19.2R3-S1; versiones 19.3 anteriores a 19.3R3-S1; versiones 19.4 anteriores a 19.4R2-S4, 19.4R3-S1; versiones 20.1 anteriores a 20.1R2; versiones 20.2 anteriores a 20.2R2, 20.2R3; versiones 20.3 anteriores a 20.3R1-S2, 20.3R2; • https://kb.juniper.net/JSA11132 •
CVSS: 6.8EPSS: 0%CPEs: 82EXPL: 0CVE-2021-0236 – Junos OS: A specific BGP VPNv6 flowspec message causes routing protocol daemon (rpd) process to crash with a core.
https://notcve.org/view.php?id=CVE-2021-0236
Due to an improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved the Routing Protocol Daemon (RPD) service, upon receipt of a specific matching BGP packet meeting a specific term in the flowspec configuration, crashes and restarts causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects only Multiprotocol BGP (MP-BGP) VPNv6 FlowSpec deployments. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: All versions after 18.4R1-EVO prior to 20.3R2-EVO. • https://kb.juniper.net/JSA11131 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 7.3EPSS: 0%CPEs: 96EXPL: 0CVE-2021-0235 – Junos OS: SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, vSRX Series: In a multi-tenant environment, a tenant host administrator may configure logical firewall isolation affecting other tenant networks
https://notcve.org/view.php?id=CVE-2021-0235
On SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, vSRX Series devices using tenant services on Juniper Networks Junos OS, due to incorrect permission scheme assigned to tenant system administrators, a tenant system administrator may inadvertently send their network traffic to one or more tenants while concurrently modifying the overall device system traffic management, affecting all tenants and the service provider. Further, a tenant may inadvertently receive traffic from another tenant. This issue affects: Juniper Networks Junos OS 18.3 version 18.3R1 and later versions on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2; 18.4 version 18.4R1 and later versions on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.1 versions 19.1R1 and later versions on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.3 versions prior to 19.3R3-S2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 19.4 versions prior to 19.4R2-S4, 19.4R3-S2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3; 20.1 versions prior to 20.1R2, 20.1R3 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3 vSRX Series; 20.2 versions prior to 20.2R2-S1, 20.2R3 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3 vSRX Series; 20.3 versions prior to 20.3R1-S2, 20.3R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3 vSRX Series; 20.4 versions prior to 20.4R1, 20.4R2 on SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3 vSRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 18.3R1. En las Series SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 con dispositivos de las Series SPC2/SPC3, vSRX, que utilizan servicios de inquilino en Juniper Networks Junos OS, debido a un esquema de permisos incorrecto asignado a los administradores del sistema inquilino, un administrador del sistema inquilino puede enviar inadvertidamente su tráfico de red a uno o más inquilinos al mismo tiempo que se modifica la gestión general del tráfico del sistema del dispositivo, lo que afecta a todos los inquilinos y al proveedor de servicios. • https://kb.juniper.net/JSA11130 • CWE-276: Incorrect Default Permissions •