CVSS: 7.5EPSS: 0%CPEs: 46EXPL: 0CVE-2024-21604 – Junos OS Evolved: A high rate of specific traffic will cause a complete system outage
https://notcve.org/view.php?id=CVE-2024-21604
An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit these packets which should prevent this issue from occurring. The following log messages can be seen when this issue occurs: <host> kernel: nf_conntrack: nf_conntrack: table full, dropping packet This issue affects Juniper Networks Junos OS Evolved: * All versions earlier than 20.4R3-S7-EVO; * 21.2R1-EVO and later versions; * 21.4-EVO versions earlier than 21.4R3-S5-EVO; * 22.1-EVO versions earlier than 22.1R3-S2-EVO; * 22.2-EVO versions earlier than 22.2R3-EVO; * 22.3-EVO versions earlier than 22.3R2-EVO; * 22.4-EVO versions earlier than 22.4R2-EVO. Una vulnerabilidad de asignación de recursos sin límites ni limitación en el kernel de Juniper Networks Junos OS Evolved permite que un atacante no autenticado basado en la red provoque una denegación de servicio (DoS). Si el motor de enrutamiento (RE) procesa una alta tasa de paquetes válidos específicos, esto provocará una pérdida de conectividad del RE con otros componentes del chasis y, por lo tanto, una interrupción completa y persistente del sistema. Tenga en cuenta que un filtro de firewall lo0 cuidadosamente diseñado bloqueará o limitará estos paquetes, lo que debería evitar que ocurra este problema. • https://supportportal.juniper.net/JSA75745 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-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.5EPSS: 0%CPEs: 62EXPL: 0CVE-2024-21603 – Junos OS: MX Series: Gathering statistics in a scaled SCU/DCU configuration will lead to a device crash
https://notcve.org/view.php?id=CVE-2024-21603
An Improper Check for Unusual or Exceptional Conditions vulnerability in the kernel of Juniper Network Junos OS on MX Series allows a network based attacker with low privileges to cause a denial of service. If a scaled configuration for Source class usage (SCU) / destination class usage (DCU) (more than 10 route classes) is present and the SCU/DCU statistics are gathered by executing specific SNMP requests or CLI commands, a 'vmcore' for the RE kernel will be seen which leads to a device restart. Continued exploitation of this issue will lead to a sustained DoS. This issue only affects MX Series devices with MPC10, MPC11 or LC9600, and MX304. No other MX Series devices are affected. This issue affects Juniper Networks Junos OS: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S6; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R2; * 22.3 versions earlier than 22.3R2. Una vulnerabilidad de verificación inadecuada de condiciones inusuales o excepcionales en el kernel de Juniper Network Junos OS en la serie MX permite que un atacante basado en red con privilegios bajos provoque una denegación de servicio. Si está presente una configuración escalada para el uso de clase de origen (SCU)/uso de clase de destino (DCU) (más de 10 clases de ruta) y las estadísticas de SCU/DCU se recopilan mediante la ejecución de solicitudes SNMP específicas o comandos CLI, se creará un 'vmcore' para el Se verá el kernel RE, lo que provocará un reinicio del dispositivo. • https://supportportal.juniper.net/JSA75744 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 7.5EPSS: 0%CPEs: 32EXPL: 0CVE-2024-21602 – Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4 UDP packet is received by the RE
https://notcve.org/view.php?id=CVE-2024-21602
A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS. This issue does not happen with IPv6 packets. This issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L: * 21.4-EVO versions earlier than 21.4R3-S6-EVO; * 22.1-EVO versions earlier than 22.1R3-S5-EVO; * 22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO; * 22.3-EVO versions earlier than 22.3R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO. Una vulnerabilidad de desreferencia de puntero NULL en Juniper Networks Junos OS Evolved en ACX7024, ACX7100-32C y ACX7100-48L permite que un atacante no autenticado basado en red provoque una denegación de servicio (DoS). Si se recibe y envía un paquete UDP IPv4 específico al motor de enrutamiento (RE), el paquete falla y se reinicia, lo que provoca una interrupción momentánea del tráfico. La recepción continua de dichos paquetes dará lugar a una DoS sostenida. • https://supportportal.juniper.net/JSA75743 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-476: NULL Pointer Dereference •
CVSS: 5.9EPSS: 0%CPEs: 64EXPL: 0CVE-2024-21601 – Junos OS: SRX Series: Due to an error in processing TCP events flowd will crash
https://notcve.org/view.php?id=CVE-2024-21601
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the Flow-processing Daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos). On SRX Series devices when two different threads try to simultaneously process a queue which is used for TCP events flowd will crash. One of these threads can not be triggered externally, so the exploitation of this race condition is outside the attackers direct control. Continued exploitation of this issue will lead to a sustained DoS. This issue affects Juniper Networks Junos OS: * 21.2 versions earlier than 21.2R3-S5; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S4; * 22.1 versions earlier than 22.1R3-S3; * 22.2 versions earlier than 22.2R3-S1; * 22.3 versions earlier than 22.3R2-S2, 22.3R3; * 22.4 versions earlier than 22.4R2-S1, 22.4R3. This issue does not affect Juniper Networks Junos OS versions earlier than 21.2R1. Una vulnerabilidad de ejecución concurrente que utiliza recurso compartido con sincronización inadecuada ('condición de ejecución') en Flow-processing Daemon (flowd) de Juniper Networks Junos OS en la serie SRX permite que un atacante basado en red no autenticado provoque una denegación de servicio ( Dos). En los dispositivos de la serie SRX, cuando dos subprocesos diferentes intentan procesar simultáneamente una cola que se utiliza para el flujo de eventos TCP, se bloqueará. Uno de estos subprocesos no se puede activar externamente, por lo que la explotación de esta condición de ejecución está fuera del control directo del atacante. • https://supportportal.juniper.net/JSA75742 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-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.5EPSS: 0%CPEs: 70EXPL: 0CVE-2024-21600 – Junos OS: PTX Series: In an FTI scenario MPLS packets hitting reject next-hop will cause a host path wedge condition
https://notcve.org/view.php?id=CVE-2024-21600
An Improper Neutralization of Equivalent Special Elements vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows a unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When MPLS packets are meant to be sent to a flexible tunnel interface (FTI) and if the FTI tunnel is down, these will hit the reject NH, due to which the packets get sent to the CPU and cause a host path wedge condition. This will cause the FPC to hang and requires a manual restart to recover. Please note that this issue specifically affects PTX1000, PTX3000, PTX5000 with FPC3, PTX10002-60C, and PTX10008/16 with LC110x. Other PTX Series devices and Line Cards (LC) are not affected. The following log message can be seen when the issue occurs: Cmerror Op Set: Host Loopback: HOST LOOPBACK WEDGE DETECTED IN PATH ID <id> (URI: /fpc/<fpc>/pfe/<pfe>/cm/<cm>/Host_Loopback/<cm>/HOST_LOOPBACK_MAKE_CMERROR_ID[<id>]) This issue affects Juniper Networks Junos OS: * All versions earlier than 20.4R3-S8; * 21.1 versions earlier than 21.1R3-S4; * 21.2 versions earlier than 21.2R3-S6; * 21.3 versions earlier than 21.3R3-S3; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R2-S2, 22.1R3; * 22.2 versions earlier than 22.2R2-S1, 22.2R3. Una vulnerabilidad de neutralización inadecuada de elementos especiales equivalentes en el motor de reenvío de paquetes (PFE) de Juniper Networks Junos OS en la serie PTX permite que un atacante adyacente no autenticado provoque una denegación de servicio (DoS). Cuando los paquetes MPLS deben enviarse a una interfaz de túnel flexible (FTI) y si el túnel FTI está inactivo, estos alcanzarán el NH rechazado, debido a lo cual los paquetes se envían a la CPU y provocan una condición de cuña en la ruta del host. • https://supportportal.juniper.net/JSA75741 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L • CWE-76: Improper Neutralization of Equivalent Special Elements •