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CVSS: 7.5EPSS: 0%CPEs: 142EXPL: 0

An Out-of-Bounds Write vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On SRX Series devices using Unified Policies with IPv6, when a specific IPv6 packet goes through a dynamic-application filter which will generate an ICMP deny message, the flowd core is observed and the PFE is restarted. This issue affects: Juniper Networks Junos OS on SRX Series: 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S9; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2. Una vulnerabilidad de escritura fuera de los límites en el Flow Processing Daemon (flowd) de Juniper Networks Junos OS permite que un atacante no autenticado basado en la red provoque una denegación de servicio (DoS). En los dispositivos de la serie SRX que utilizan políticas unificadas con IPv6, cuando un paquete IPv6 específico pasa por un filtro de aplicación dinámica que generará un mensaje de denegación de ICMP, se observa el núcleo fluido y se reinicia el PFE. • https://kb.juniper.net/JSA70207 • CWE-787: Out-of-bounds Write •

CVSS: 7.5EPSS: 0%CPEs: 85EXPL: 0

An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1. Una vulnerabilidad de acceso de puntero no inicializado en SIP Application Layer Gateway (ALG) de Juniper Networks Junos OS en las series SRX y MX permite a un atacante no autenticado y basado en la red causar una Denegación de Servicio (DoS). • https://kb.juniper.net/JSA69892 • CWE-824: Access of Uninitialized Pointer •

CVSS: 7.5EPSS: 0%CPEs: 89EXPL: 0

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based, attacker to cause Denial of Service (DoS). A PFE crash will happen when a GPRS Tunnel Protocol (GTP) packet is received with a malformed field in the IP header of GTP encapsulated General Packet Radio Services (GPRS) traffic. The packet needs to match existing state which is outside the attackers control, so the issue cannot be directly exploited. The issue will only be observed when endpoint address validation is enabled. This issue affects Juniper Networks Junos OS on SRX Series: 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S3; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. • https://kb.juniper.net/JSA69891 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 7.5EPSS: 0%CPEs: 32EXPL: 0

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On SRX Series If Unified Threat Management (UTM) Enhanced Content Filtering (CF) is enabled and specific transit traffic is processed the PFE will crash and restart. This issue affects Juniper Networks Junos OS: 21.4 versions prior to 21.4R1-S2, 21.4R2 on SRX Series; 22.1 versions prior to 22.1R1-S1, 22.1R2 on SRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1. Una vulnerabilidad de Desreferencia de Puntero NULL en Packet Forwarding Engine del Juniper Networks Junos OS en la serie SRX permite a un atacante no autenticado basado en la red causar una Denegación de Servicio (DoS). • https://kb.juniper.net/JSA69886 • CWE-476: NULL Pointer Dereference •

CVSS: 7.5EPSS: 0%CPEs: 11EXPL: 0

An Unchecked Return Value to NULL Pointer Dereference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On SRX Series if Unified Threat Management (UTM) Enhanced Content Filtering (CF) and AntiVirus (AV) are enabled together and the system processes specific valid transit traffic the Packet Forwarding Engine (PFE) will crash and restart. This issue affects Juniper Networks Junos OS 21.4 versions prior to 21.4R1-S2, 21.4R2 on SRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 21.4R1. Una vulnerabilidad de Desreferencia de Valor de Retorno no Comprobado a puntero NULL en Packet Forwarding Engine (PFE) de Junos OS de Juniper Networks permite que un atacante no autenticado y basado en la red cause una Denegación de Servicio (DoS). • https://kb.juniper.net/JSA69885 • CWE-252: Unchecked Return Value CWE-690: Unchecked Return Value to NULL Pointer Dereference •