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CVE-2022-22210

Status: ModifiedMedium (6.5)—

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition.

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This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Juniper — Junos

CWEs

References

Raw JSON (NVD)

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      "value": "A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions."
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      "value": "Una vulnerabilidad de desreferencia de puntero NULL en el motor de reenvío de paquetes (PFE) de Junos OS de Juniper Networks en las series QFX5000 y MX permite a un atacante adyacente no autenticado causar una Denegación de Servicio (DoS). En las series QFX5K y MX, cuando el PFE recibe un paquete VxLAN específico, el proceso Layer 2 Address Learning Manager (L2ALM) es bloqueado, conllevando a un reinicio del FPC. La recepción continuada de este paquete específico creará una condición de Denegación de Servicio (DoS) sostenida. Este problema afecta al Sistema Operativo Junos de Juniper Networks en las series QFX5000 y MX: versiones 20.3 anteriores a 20.3R3-S3; versiones 20.4 anteriores a 20.4R3-S2; versiones 21.2 anteriores a 21.2R2-S1. Este problema no afecta a Juniper Networks Junos OS: Todas las versiones anteriores a 20.3R1; 21.1 versión 21.1R1 y posteriores"
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