CVE-2022-22203

Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fxpc process crash followed by an FPC reboot

Published Jul 20, 2022 CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed
Description
An Incorrect Comparison vulnerability in PFE of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). On QFX5000 Series, and EX4600 and EX4650 platforms, the fxpc process will crash followed by the FPC reboot upon receipt of a specific hostbound packet. Continued receipt of these specific packets will create a sustained Denial of Service (DoS) condition. This issue only affects Juniper Networks Junos OS 19.4 version 19.4R3-S4.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: 19.4R3-S5, and all subsequent releases.


Vendor Workaround

There are no viable workarounds for this issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-27350 An Incorrect Comparison vulnerability in PFE of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). On QFX5000 Series, and EX4600 and EX4650 platforms, the fxpc process will crash followed by the FPC reboot upon receipt of a specific hostbound packet. Continued receipt of these specific packets will create a sustained Denial of Service (DoS) condition. This issue only affects Juniper Networks Junos OS 19.4 version 19.4R3-S4.
References
History
Type Values Removed Values Added
Title Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fxpc process crash followed by an FPC reboot Junos OS: EX4600 Series and QFX5000 Series: Receipt of specific traffic will lead to an fxpc process crash followed by an FPC reboot
Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Sep 16, 2024, 8:57 PM
Reserved
Dec 21, 2021, 12:00 AM
Status
Modified
Published
Jul 20, 2022, 3:15 PM
Modified
Jun 17, 2026, 4:27 AM