CVSS: 7.5EPSS: 0%CPEs: 110EXPL: 0CVE-2023-44197 – Junos OS and Junos OS Evolved: An rpd crash may occur when BGP is processing newly learned routes
https://notcve.org/view.php?id=CVE-2023-44197
An Out-of-Bounds Write vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On all Junos OS and Junos OS Evolved devices an rpd crash and restart can occur while processing BGP route updates received over an established BGP session. This specific issue is observed for BGP routes learned via a peer which is configured with a BGP import policy that has hundreds of terms matching IPv4 and/or IPv6 prefixes. This issue affects Juniper Networks Junos OS: * All versions prior to 20.4R3-S8; * 21.1 version 21.1R1 and later versions; * 21.2 versions prior to 21.2R3-S2; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R2-S1, 21.4R3-S5. This issue affects Juniper Networks Junos OS Evolved: * All versions prior to 20.4R3-S8-EVO; * 21.1-EVO version 21.1R1-EVO and later versions; * 21.2-EVO versions prior to 21.2R3-S2-EVO; * 21.3-EVO version 21.3R1-EVO and later versions; * 21.4-EVO versions prior to 21.4R2-S1-EVO, 21.4R3-S5-EVO. Una vulnerabilidad de Escritura Fuera de los Límites en el Routing Protocol Daemon (rpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante basado en red no autenticado provoque una Denegación de Servicio (DoS). En todos los dispositivos Junos OS y Junos OS Evolved, se puede producir un bloqueo y reinicio de rpd mientras se procesan las actualizaciones de ruta BGP recibidas a través de una sesión BGP establecida. Este problema específico se observa para las rutas BGP aprendidas a través de un par que está configurado con una política de importación de BGP que tiene cientos de términos que coinciden con los prefijos IPv4 y/o IPv6. • https://supportportal.juniper.net/JSA73163 • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 80EXPL: 0CVE-2023-44196 – Junos OS Evolved: PTX10003 Series: Packets which are not destined to the router can reach the RE
https://notcve.org/view.php?id=CVE-2023-44196
An Improper Check for Unusual or Exceptional Conditions in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS Evolved on PTX10003 Series allows an unauthenticated adjacent attacker to cause an impact to the integrity of the system. When specific transit MPLS packets are received by the PFE, these packets are internally forwarded to the RE. This issue is a prerequisite for CVE-2023-44195. This issue affects Juniper Networks Junos OS Evolved: * All versions prior to 20.4R3-S8-EVO; * 21.1-EVO version 21.1R1-EVO and later; * 21.2-EVO versions prior to 21.2R3-S6-EVO; * 21.3-EVO version 21.3R1-EVO and later; * 21.4-EVO versions prior to 21.4R3-S3-EVO; * 22.1-EVO versions prior to 22.1R3-S4-EVO; * 22.2-EVO versions prior to 22.2R3-S3-EVO; * 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-EVO; * 22.4-EVO versions prior to 22.4R2-EVO. Una Verificación Inadecuada de Condiciones Inusuales o Excepcionales en Packet Forwarding Engine (pfe) de Juniper Networks Junos OS Evolved en la serie PTX10003 permite que un atacante adyacente no autenticado cause un impacto en la integridad del sistema. Cuando el PFE recibe paquetes MPLS de tránsito específicos, estos paquetes se reenvían internamente al RE. Este problema es un requisito previo para CVE-2023-44195. • https://supportportal.juniper.net/JSA73162 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 8.4EPSS: 0%CPEs: 50EXPL: 0CVE-2023-44194 – Junos OS: An unauthenticated attacker with local access to the device can create a backdoor with root privileges
https://notcve.org/view.php?id=CVE-2023-44194
An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges. This issue affects Juniper Networks Junos OS: * All versions prior to 20.4R3-S5; * 21.1 versions prior to 21.1R3-S4; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S3; * 21.4 versions prior to 21.4R3-S1. Una vulnerabilidad de permisos predeterminados incorrectos en Juniper Networks Junos OS permite que un atacante no autenticado con acceso local al dispositivo cree un backdoor con privilegios de root. El problema se debe a permisos de directorio inadecuados en un determinado directorio del sistema, lo que permite a un atacante con acceso a este directorio crear un backdoor con privilegios de root. Este problema afecta a Juniper Networks Junos OS: * Todas las versiones anteriores a 20.4R3-S5; * Versiones 21.1 anteriores a 21.1R3-S4; * Versiones 21.2 anteriores a 21.2R3-S4; * Versiones 21.3 anteriores a 21.3R3-S3; * Versiones 21.4 anteriores a 21.4R3-S1. • https://supportportal.juniper.net/JSA73158 • CWE-276: Incorrect Default Permissions •
CVSS: 5.5EPSS: 0%CPEs: 81EXPL: 0CVE-2023-44193 – Junos OS: MX Series: An FPC crash is observed when CFM is enabled in a VPLS scenario and a specific LDP related command is run
https://notcve.org/view.php?id=CVE-2023-44193
An Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS). On all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition. This issue affects: Juniper Networks Junos OS on MX Series: * All versions prior to 20.4R3-S7; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S1; * 22.2 versions prior to 22.2R2-S1, 22.2R3; * 22.3 versions prior to 22.3R1-S2, 22.3R2. Una vulnerabilidad de liberación inadecuada de memoria antes de eliminar la última referencia en Packet Forwarding Engine (PFE) de Juniper Networks Junos OS permite que un atacante local con pocos privilegios provoque una falla del FPC, lo que lleva a una Denegación de Servicio (DoS). En todas las series Junos MX con MPC1 - MPC9, LC480, LC2101, MX10003 y MX80, cuando Connectivity-Fault-Management (CFM) está habilitada en un escenario VPLS y se ejecuta un comando relacionado con LDP específico, un FPC fallará y se reiniciará. La ejecución continua de este comando LDP específico puede provocar una condición sostenida de Denegación de Servicio. • https://supportportal.juniper.net/JSA73157 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 7.5EPSS: 0%CPEs: 86EXPL: 0CVE-2023-44192 – Junos OS: QFX5000 Series: DMA memory leak is observed when specific DHCP packets are transmitted over pseudo-VTEP
https://notcve.org/view.php?id=CVE-2023-44192
An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause memory leak, leading to Denial of Service (DoS). On all Junos OS QFX5000 Series platforms, when pseudo-VTEP (Virtual Tunnel End Point) is configured under EVPN-VXLAN scenario, and specific DHCP packets are transmitted, DMA memory leak is observed. Continuous receipt of these specific DHCP packets will cause memory leak to reach 99% and then cause the protocols to stop working and traffic is impacted, leading to Denial of Service (DoS) condition. A manual reboot of the system recovers from the memory leak. To confirm the memory leak, monitor for "sheaf:possible leak" and "vtep not found" messages in the logs. This issue affects: Juniper Networks Junos OS QFX5000 Series: * All versions prior to 20.4R3-S6; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S5; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S2; * 22.2 versions prior to 22.2R2-S2, 22.2R3; * 22.3 versions prior to 22.3R2-S1, 22.3R3; * 22.4 versions prior to 22.4R1-S2, 22.4R2. Una vulnerabilidad de validación de entrada incorrecta en Packet Forwarding Engine (PFE) de Juniper Networks Junos OS permite que un atacante basado en red no autenticado cause una pérdida de memoria, lo que lleva a una Denegación de Servicio (DoS). En todas las plataformas de la serie Junos OS QFX5000, cuando se configura pseudo-VTEP (Virtual Tunnel End Point) en el escenario EVPN-VXLAN y se transmiten paquetes DHCP específicos, se observa una pérdida de memoria DMA. • https://supportportal.juniper.net/JSA73156 • CWE-20: Improper Input Validation CWE-401: Missing Release of Memory after Effective Lifetime •