PT-2022-3870 · Juniper Networks · Junos

Published

2022-07-13

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Updated

2022-07-29

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CVE-2022-22207

CVSS v2.0

7.8

High

VectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions 20.1 later than 20.1R1 through 20.1 Juniper Networks Junos OS versions 20.2 prior to 20.2R3-S5 Juniper Networks Junos OS versions 20.3 prior to 20.3R3-S4 Juniper Networks Junos OS versions 20.4 prior to 20.4R3 Juniper Networks Junos OS versions 21.1 prior to 21.1R2 Juniper Networks Junos OS versions 21.2 prior to 21.2R2
Description The issue is related to a Use After Free vulnerability in the Advanced Forwarding Toolkit (AFT) manager process of Juniper Networks Junos OS. This vulnerability allows an unauthenticated networked attacker to cause a kernel crash due to intensive polling of Abstracted Fabric (AF) interface statistics, resulting in a Denial of Service (DoS). Continued gathering of AF interface statistics will create a sustained Denial of Service (DoS) condition.
Recommendations For Juniper Networks Junos OS version 20.1, update to version 20.1R1 or later. For Juniper Networks Junos OS version 20.2, update to version 20.2R3-S5 or later. For Juniper Networks Junos OS version 20.3, update to version 20.3R3-S4 or later. For Juniper Networks Junos OS version 20.4, update to version 20.4R3 or later. For Juniper Networks Junos OS version 21.1, update to version 21.1R2 or later. For Juniper Networks Junos OS version 21.2, update to version 21.2R2 or later. As a temporary workaround, consider restricting access to the Abstracted Fabric (AF) interface statistics to minimize the risk of exploitation.

Fix

DoS

Use After Free

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Weakness Enumeration

CWE-416

Related Identifiers

BDU:2022-04673
CVE-2022-22207

Affected Products

Junos