PT-2022-6654 · Juniper Networks · Junos+1

Published

2022-10-12

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Updated

2022-10-21

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CVE-2022-22225

CVSS v3.1

5.9

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions 19.2R2 through 19.2R3-S6 Juniper Networks Junos OS versions 20.2 through 20.2R3-S4 Juniper Networks Junos OS versions 20.3 through 20.3R3-S3 Juniper Networks Junos OS versions 20.4 through 20.4R3-S4 Juniper Networks Junos OS versions 21.1 through 21.1R3 Juniper Networks Junos OS versions 21.2 through 21.2R2 Juniper Networks Junos OS versions 21.3 through 21.3R2 Juniper Networks Junos OS Evolved versions prior to 20.4R3-S4-EVO Juniper Networks Junos OS Evolved version 21.1R1-EVO and later versions are not affected, but versions 21.2-EVO prior to 21.2R2-EVO Juniper Networks Junos OS Evolved versions 21.3-EVO prior to 21.3R2-EVO
Description A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated attacker with an established BGP session to cause a Denial of Service (DoS). In a BGP multipath scenario, when one of the contributing routes is flapping often and rapidly, rpd may crash. This issue is related to errors in state management and can be exploited by a remote attacker to cause a service disruption.
Recommendations For Juniper Networks Junos OS versions 19.2R2 through 19.2R3-S6, update to version 19.2R3-S6 or later. For Juniper Networks Junos OS versions 20.2 through 20.2R3-S4, update to version 20.2R3-S4 or later. For Juniper Networks Junos OS versions 20.3 through 20.3R3-S3, update to version 20.3R3-S3 or later. For Juniper Networks Junos OS versions 20.4 through 20.4R3-S4, update to version 20.4R3-S4 or later. For Juniper Networks Junos OS versions 21.1 through 21.1R3, update to version 21.1R3 or later. For Juniper Networks Junos OS versions 21.2 through 21.2R2, update to version 21.2R2 or later. For Juniper Networks Junos OS versions 21.3 through 21.3R2, update to version 21.3R2 or later. For Juniper Networks Junos OS Evolved versions prior to 20.4R3-S4-EVO, update to version 20.4R3-S4-EVO or later. For Juniper Networks Junos OS Evolved versions 21.2-EVO prior to 21.2R2-EVO, update to version 21.2R2-EVO or later. For Juniper Networks Junos OS Evolved versions 21.3-EVO prior to 21.3R2-EVO, update to version 21.3R2-EVO or later.

Fix

DoS

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

BDU:2023-03146
CVE-2022-22225

Affected Products

Junos
Junos Evolved