CVE-2022-22210 (GCVE-0-2022-22210)

Vulnerability from cvelistv5 – Published: 2022-07-20 14:15 – Updated: 2024-09-16 16:33
VLAI?
Title
Junos OS: QFX5000 Series and MX Series: An l2alm crash leading to an FPC crash can be observed in VxLAN scenario
Summary
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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
  • Denial of Service (DoS)
Assigner
References
https://kb.juniper.net/JSA69714 x_refsource_CONFIRM
Impacted products
Vendor Product Version
Juniper Networks Junos OS Affected: 20.3 , < 20.3R3-S3 (custom)
Affected: 20.4 , < 20.4R3-S2 (custom)
Affected: 21.2 , < 21.2R2-S1 (custom)
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    Juniper Networks Junos OS Unaffected: unspecified , < 20.3R1 (custom)
Unaffected: 21.1R1 , < 21.1* (custom)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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