CVE-2022-22220
Vulnerability from cvelistv5
Published
2022-10-18 02:46
Modified
2024-09-17 03:23
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Junos OS and Junos OS Evolved: Due to a race condition the rpd process can crash upon receipt of a BGP update message containing flow spec route
References
sirt@juniper.nethttps://kb.juniper.net/JSA69902Vendor Advisory
Impacted products
Juniper NetworksJunos OS
Juniper NetworksJunos OS Evolved
Show details on NVD website

To clipboard 

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          "value": "A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS, Junos OS Evolved allows a network-based unauthenticated attacker to cause a Denial of Service (DoS). When a BGP flow route with redirect IP extended community is received, and the reachability to the next-hop of the corresponding redirect IP is flapping, the rpd process might crash. Whether the crash occurs depends on the timing of the internally processing of these two events and is outside the attackers control. Please note that this issue also affects Route-Reflectors unless \u0027routing-options flow firewall-install-disable\u0027 is configured. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.4 versions prior to 19.4R3-S8; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1-EVO versions prior to 21.1R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1."
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Cuando es recibida una ruta de flujo BGP con comunidad extendida de IP de redirecci\u00f3n, y la accesibilidad al siguiente salto de la IP de redireccionamiento correspondiente es inestable, el proceso rpd podr\u00eda bloquearse. El hecho de que sea producido el fallo depende del momento en que son procesados internamente estos dos eventos y est\u00e1 fuera del control de atacantes. Tenga en cuenta que este problema tambi\u00e9n afecta a los Route-Reflectors a menos que sea configurado \\\"routing-options flow firewall-install-disable\\\". Este problema afecta a: Juniper Networks Junos OS: 18.4 versiones anteriores a 18.4R2-S10, 18.4R3-S10; 19.1 versiones anteriores a 19.1R3-S7; 19.2 versiones anteriores a 19.2R1-S8, 19.2R3-S4; 19.4 versiones anteriores a 19.4R3-S8; 20.2 versiones anteriores a 20.2R3-S3; 20.3 versiones anteriores a 20.3R3-S2; 20.4 versiones anteriores a 20.4R3; 21.1 versiones anteriores a 21.1R2. Juniper Networks Junos OS Evolved: Todas las versiones anteriores a 20.4R2-EVO; versiones 21.1-EVO anteriores a 21.1R2-EVO. 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ferences\":[{\"url\":\"https://kb.juniper.net/JSA69902\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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