{
  "id": "CVE-2022-40318",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-05-03T12:16:27.800",
  "lastModified": "2024-11-21T07:21:18.503",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case. NOTE: this behavior occurs in bgp_open_option_parse in the bgp_open.c file, a different location (with a different attack vector) relative to CVE-2022-40302."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en bgpd en FRRouting (FRR) hasta 8.4. Al manipular un mensaje BGP OPEN con una opci\u00f3n de tipo 0xff (longitud extendida de RFC 9072), los atacantes pueden provocar una denegaci\u00f3n de servicio (fallo de aserci\u00f3n y reinicio del servicio, o lectura fuera de l\u00edmites). Esto es posible debido a comprobaciones de l\u00edmites inconsistentes que no tienen en cuenta la lectura de 3 bytes (en lugar de 2) en este caso 0xff. NOTA: este comportamiento ocurre en bgp_open_option_parse en el archivo bgp_open.c, una ubicaci\u00f3n diferente (con un vector de ataque diferente) en relaci\u00f3n con CVE-2022-40302."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-125"
        }
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    }
  ],
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          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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  "references": [
    {
      "url": "https://github.com/FRRouting/frr/releases",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
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