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MEDIUM · 6.5

CVE-2023-22405

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthe...

Vulnerability Description

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS) to device due to out of resources. When a device is configured with "service-provider/SP style" switching, and mac-limiting is configured on an Aggregated Ethernet (ae) interface, and then a PFE is restarted or the device is rebooted, mac-limiting doesn't work anymore. Please note that the issue might not be apparent as traffic will continue to flow through the device although the mac table and respective logs will indicate that mac limit is reached. Functionality can be restored by removing and re-adding the MAC limit configuration. This issue affects Juniper Networks Junos OS on QFX5k Series, EX46xx Series: All versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R3 on; 21.4 versions prior to 21.4R3 on; 22.1 versions prior to 22.1R2 on.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
JuniperJunos< 20.2
JuniperEx4600-
JuniperEx4600-Vc-
JuniperEx4650-
JuniperQfx5100-
JuniperQfx5100-96S-
JuniperQfx5110-
JuniperQfx5120-
JuniperQfx5130-
JuniperQfx5200-
JuniperQfx5200-32C-
JuniperQfx5200-48Y-
JuniperQfx5210-
JuniperQfx5210-64C-
JuniperQfx5220-

Related Weaknesses (CWE)

CWE-1250

References

FAQ

What is CVE-2023-22405?

CVE-2023-22405 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthe...

How severe is CVE-2023-22405?

CVE-2023-22405 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-22405?

Check the references section above for vendor advisories and patch information. Affected products include: Juniper Junos, Juniper Ex4600, Juniper Ex4600-Vc, Juniper Ex4650, Juniper Qfx5100.