CVE-2022-22219 (GCVE-0-2022-22219)

Vulnerability from cvelistv5 – Published: 2022-10-18 02:46 – Updated: 2025-05-12 14:43
VLAI?
Title
Junos OS and Junos OS Evolved: RPD core upon receipt of a specific EVPN route by a BGP route reflector in an EVPN environment
Summary
Due to the Improper Handling of an Unexpected Data Type in the processing of EVPN routes on Juniper Networks Junos OS and Junos OS Evolved, an attacker in direct control of a BGP client connected to a route reflector, or via a machine in the middle (MITM) attack, can send a specific EVPN route contained within a BGP Update, triggering a routing protocol daemon (RPD) crash, leading to a Denial of Service (DoS) condition. Continued receipt and processing of these specific EVPN routes could create a sustained Denial of Service (DoS) condition. This issue only occurs on BGP route reflectors, only within a BGP EVPN multicast environment, and only when one or more BGP clients have 'leave-sync-route-oldstyle' enabled. This issue affects: Juniper Networks Junos OS 21.3 versions prior to 21.3R3-S2; 21.4 versions prior to 21.4R2-S2, 21.4R3; 22.1 versions prior to 22.1R1-S2, 22.1R3; 22.2 versions prior to 22.2R2. Juniper Networks Junos OS Evolved 21.3 version 21.3R1-EVO and later versions prior to 21.4R3-EVO; 22.1 versions prior to 22.1R1-S2-EVO, 22.1R3-EVO; 22.2 versions prior to 22.2R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.3R1. Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-241 - Improper Handling of Unexpected Data Type
  • Denial of Service (DoS)
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Unaffected: unspecified , ≤ 21.3R1 (custom)
Affected: 21.3 , < 21.3R3-S2 (custom)
Affected: 21.4 , < 21.4R2-S2, 21.4R3 (custom)
Affected: 22.1 , < 22.1R1-S2, 22.1R3 (custom)
Affected: 22.2 , < 22.2R2 (custom)
Create a notification for this product.
    Juniper Networks Junos OS Evolved Unaffected: unspecified , < 21.3R1-EVO (custom)
Affected: 21.3R1-EVO , < 21.3* (custom)
Affected: 21.4 , < 21.4R3-EVO (custom)
Affected: 22.1 , < 22.1R1-S2-EVO, 22.1R3-EVO (custom)
Affected: 22.2 , < 22.2R2-EVO (custom)
Create a notification for this product.
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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