CVE-2018-0063

{
  "id": "CVE-2018-0063",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "baseScore": 3.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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    "cvssMetricV30": [
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        "type": "Secondary",
        "source": "sirt@juniper.net",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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        "impactScore": 3.6,
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          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 2.8
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  "affected": [
    {
      "source": "sirt@juniper.net",
      "affectedData": [
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS",
          "versions": [
            {
              "status": "affected",
              "version": "17.3R3",
              "lessThan": "17.3R3-S1",
              "versionType": "custom"
            }
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  "published": "2018-10-10T18:29:03.703",
  "references": [
    {
      "url": "http://www.securitytracker.com/id/1041861",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "sirt@juniper.net"
    },
    {
      "url": "https://kb.juniper.net/JSA10899",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "sirt@juniper.net"
    },
    {
      "url": "http://www.securitytracker.com/id/1041861",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://kb.juniper.net/JSA10899",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the IP next-hop index database in Junos OS 17.3R3 may allow a flood of ARP requests, sent to the management interface, to exhaust the private Internal routing interfaces (IRIs) next-hop limit. Once the IRI next-hop database is full, no further next hops can be learned and existing entries cannot be cleared, leading to a sustained denial of service (DoS) condition. An indicator of compromise for this issue is the report of the following error message: %KERN-4: Nexthop index allocation failed: private index space exhausted This issue only affects the management interface, and does not impact regular transit traffic through the FPCs. This issue also only affects Junos OS 17.3R3. No prior versions of Junos OS are affected by this issue. Affected releases are Juniper Networks Junos OS: 17.3R3."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la base de datos de índices de IP next-hop en Junos OS 17.3R3 podría permitir una inundación de peticiones ARP, enviadas a la interfaz de gestión, para agotar el límite next-hop de los IRI (Internal Routing Interfaces) privados. Una vez la base de datos next-hop de IRI está llena, no se pueden aprender más next-hops y las entradas existentes no se pueden eliminar, lo que conduce a una denegación de servicio (DoS) prolongada. Un indicador de compromiso para este problema es el reporte del siguiente mensaje de error: %KERN-4: Nexthop index allocation failed: private index space exhausted. Este problema solo afecta a la interfaz de gestión y no impacta sobre el tráfico de tránsito regular a través de los FPC. Este problema solo afecta a Junos OS 17.3R3. Ninguna otra versión anterior de Junos OS se ha visto afectada por esta vulnerabilidad. Las versiones afectadas de Juniper Networks Junos OS son: 17.3R3."
    }
  ],
  "lastModified": "2026-06-17T01:29:31.540",
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  "sourceIdentifier": "sirt@juniper.net"
}