CVE Vulnerabilities

CVE-2022-22210

NULL Pointer Dereference

Published: Jul 20, 2022 | Modified: Jul 29, 2022
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Junos Juniper 20.3 (including) 20.3 (including)
Junos Juniper 20.3-r1 (including) 20.3-r1 (including)
Junos Juniper 20.3-r1-s1 (including) 20.3-r1-s1 (including)
Junos Juniper 20.3-r1-s2 (including) 20.3-r1-s2 (including)
Junos Juniper 20.3-r2 (including) 20.3-r2 (including)
Junos Juniper 20.3-r2-s1 (including) 20.3-r2-s1 (including)
Junos Juniper 20.3-r3 (including) 20.3-r3 (including)
Junos Juniper 20.3-r3-s1 (including) 20.3-r3-s1 (including)
Junos Juniper 20.3-r3-s2 (including) 20.3-r3-s2 (including)
Junos Juniper 20.4 (including) 20.4 (including)
Junos Juniper 20.4-r1 (including) 20.4-r1 (including)
Junos Juniper 20.4-r1-s1 (including) 20.4-r1-s1 (including)
Junos Juniper 20.4-r2 (including) 20.4-r2 (including)
Junos Juniper 20.4-r2-s1 (including) 20.4-r2-s1 (including)
Junos Juniper 20.4-r2-s2 (including) 20.4-r2-s2 (including)
Junos Juniper 20.4-r3 (including) 20.4-r3 (including)
Junos Juniper 20.4-r3-s1 (including) 20.4-r3-s1 (including)
Junos Juniper 21.2 (including) 21.2 (including)
Junos Juniper 21.2-r1 (including) 21.2-r1 (including)
Junos Juniper 21.2-r1-s1 (including) 21.2-r1-s1 (including)
Junos Juniper 21.2-r1-s2 (including) 21.2-r1-s2 (including)
Junos Juniper 21.2-r2 (including) 21.2-r2 (including)

Potential Mitigations

References