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CVSS: 8.2EPSS: 0%CPEs: 15EXPL: 0

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When telemetry requests are sent to the device, and the Dynamic Rendering Daemon (drend) is suspended, the l2ald crashes and restarts due to factors outside the attackers control. Repeated occurrences of these events causes a sustained DoS condition. This issue affects: Junos OS: * All versions earlier than 20.4R3-S10; * 21.2 versions earlier than 21.2R3-S7; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3-S4; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S1; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2. Junos OS Evolved: * All versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S4-EVO; * 22.2-EVO versions earlier than 22.2R3-S3-EVO; * 22.3-EVO versions earlier than 22.3R3-S1-EVO; * 22.4-EVO versions earlier than 22.4R3-EVO; * 23.2-EVO versions earlier than 23.2R2-EVO. Una verificación inadecuada de la vulnerabilidad de condiciones inusuales o excepcionales en el daemon de aprendizaje de direcciones de capa 2 (l2ald) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado provoque una denegación de servicio (DoS). Cuando se envían solicitudes de telemetría al dispositivo y el daemon de renderizado dinámico (drend) se suspende, l2ald falla y se reinicia debido a factores fuera del control de los atacantes. La ocurrencia repetida de estos eventos causa una condición DoS sostenida. • https://supportportal.juniper.net/JSA79180 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 8.7EPSS: 0%CPEs: 8EXPL: 0

An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet handling, a consistent rise in CPU memory utilization occurs. This results in packet drops in the traffic and eventually the PFE crashes. A manual reboot of the PFE will be required to restore the device to original state. This issue affects Junos OS:   * 21.2 before 21.2R3-S7, * 21.4 before 21.4R3-S6,  * 22.1 before 22.1R3-S5, * 22.2 before 22.2R3-S3, * 22.3 before 22.3R3-S2, * 22.4 before 22.4R3, * 23.2 before 23.2R1-S2, 23.2R2. Una restricción inadecuada de operaciones dentro de los límites de una vulnerabilidad de búfer de memoria en el motor de reenvío de paquetes (PFE) de Juniper Networks Junos OS permite que un atacante no autenticado basado en la red provoque una denegación de servicio (DoS). Cuando se recibe una gran cantidad de tráfico específico en un dispositivo SRX4600, debido a un error en el manejo de paquetes internos, se produce un aumento constante en la utilización de la memoria de la CPU. • https://supportportal.juniper.net/JSA79176 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 8.7EPSS: 0%CPEs: 9EXPL: 0

An Improper Check for Unusual or Exceptional Conditions vulnerability in the the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS). The pkid is responsible for the certificate verification. Upon a failed verification, the pkid uses all CPU resources and becomes unresponsive to future verification attempts. This means that all subsequent VPN negotiations depending on certificate verification will fail. This CPU utilization of pkid can be checked using this command:   root@srx> show system processes extensive | match pkid   xxxxx  root  103  0  846M  136M  CPU1  1 569:00 100.00% pkid This issue affects: Juniper Networks Junos OS * All versions prior to 20.4R3-S10; * 21.2 versions prior to 21.2R3-S7; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S3; * 22.3 versions prior to 22.3R3-S1; * 22.4 versions prior to 22.4R3; * 23.2 versions prior to 23.2R1-S2, 23.2R2. Una vulnerabilidad de verificación inadecuada de condiciones inusuales o excepcionales en el daemon de infraestructura de clave pública (pkid) de Juniper Networks Junos OS permite que un atacante en red no autenticado provoque una denegación de servicio (DoS). El pkid es responsable de la verificación del certificado. • https://supportportal.juniper.net/JSA79179 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 8.7EPSS: 0%CPEs: 13EXPL: 0

A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when EVPN is configured, and a specific EVPN type-5 route is received via BGP, rpd crashes and restarts. Continuous receipt of this specific route will lead to a sustained Denial of Service (DoS) condition. This issue affects: Junos OS: * all versions before 21.2R3-S7, * from 21.4 before 21.4R3-S5, * from 22.1 before 22.1R3-S4, * from 22.2 before 22.2R3-S2, * from 22.3 before 22.3R3-S1, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2. Junos OS Evolved: * all versions before 21.4R3-S5-EVO, * from 22.1-EVO before 22.1R3-S4-EVO, * from 22.2-EVO before 22.2R3-S2-EVO, * from 22.3-EVO before 22.3R3-S1-EVO, * from 22.4-EVO before 22.4R3-EVO, * from 23.2-EVO before 23.2R2-EVO. Una vulnerabilidad de desbordamiento de búfer en la región stack de la memoria en el componente Routing Protocol Daemon (RPD) de Junos OS y Junos OS Evolved permite que un atacante basado en red no autenticado provoque un bloqueo de rpd, lo que lleva a una denegación de servicio (DoS). En todas las plataformas Junos OS y Junos OS Evolved, cuando EVPN está configurado y se recibe una ruta EVPN tipo 5 específica a través de BGP, rpd se bloquea y se reinicia. La recepción continua de esta ruta específica dará lugar a una condición sostenida de Denegación de Servicio (DoS). • https://supportportal.juniper.net/JSA79094 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-121: Stack-based Buffer Overflow •

CVSS: 8.7EPSS: 0%CPEs: 17EXPL: 0

An Improper Validation of Specified Type of Input vulnerability in Routing Protocol Daemon (RPD) of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart. This issue affects: Junos OS: * all versions before 21.2R3-S7,  * from 21.3 before 21.3R3-S5,  * from 21.4 before 21.4R3-S5,  * from 22.1 before 22.1R3-S5,  * from 22.2 before 22.2R3-S3,  * from 22.3 before 22.3R3-S2,  * from 22.4 before 22.4R3,  * from 23.2 before 23.2R1-S2, 23.2R2. Junos OS Evolved: * all versions before 21.2R3-S7-EVO,  * from 21.3-EVO before 21.3R3-S5-EVO,  * from 21.4-EVO before 21.4R3-S5-EVO,  * from 22.2-EVO before 22.2R3-S3-EVO,  * from 22.3-EVO before 22.3R3-S2-EVO,  * from 22.4-EVO before 22.4R3-EVO,  * from 23.2-EVO before 23.2R1-S2-EVO, 23.2R2-EVO. This is a related but separate issue than the one described in JSA75739 Una validación inadecuada de una vulnerabilidad de tipo específico de entrada en el daemon de protocolo de enrutamiento (RPD) de Junos OS y Junos OS Evolved permite que un atacante no autenticado basado en la red provoque una denegación de servicio (DoS). Si se recibe una actualización de BGP a través de una sesión BGP establecida que contiene un atributo de encapsulación de túnel con un TLV específicamente mal formado, rpd fallará y se reiniciará. Este problema afecta a: Junos OS: * todas las versiones anteriores a 21.2R3-S7, * desde 21.3 anterior a 21.3R3-S5, * desde 21.4 anterior a 21.4R3-S5, * desde 22.1 anterior a 22.1R3-S5, * desde 22.2 anterior a 22.2R3- S3, * desde 22.3 antes de 22.3R3-S2, * desde 22.4 antes de 22.4R3, * desde 23.2 antes de 23.2R1-S2, 23.2R2. Junos OS Evolved: * todas las versiones anteriores a 21.2R3-S7-EVO, * desde 21.3-EVO antes de 21.3R3-S5-EVO, * desde 21.4-EVO antes de 21.4R3-S5-EVO, * desde 22.2-EVO antes de 22.2R3- S3-EVO, * desde 22.3-EVO antes de 22.3R3-S2-EVO, * desde 22.4-EVO antes de 22.4R3-EVO, * desde 23.2-EVO antes de 23.2R1-S2-EVO, 23.2R2-EVO. Este es un problema relacionado pero separado del descrito en JSA75739. • https://supportportal.juniper.net/JSA79095 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-1287: Improper Validation of Specified Type of Input •