{
  "id": "CVE-2021-0276",
  "sourceIdentifier": "sirt@juniper.net",
  "published": "2021-07-15T20:15:09.290",
  "lastModified": "2022-08-05T15:14:58.930",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Desbordamiento del B\u00fafer en la regi\u00f3n stack de la memoria en Juniper Networks SBR Carrier con la autenticaci\u00f3n EAP (Extensible Authentication Protocol) configurada, permite a un atacante enviar paquetes espec\u00edficos causando el bloqueo del demonio radius, resultando en una Denegaci\u00f3n de Servicio (DoS) o conllevando a una ejecuci\u00f3n de c\u00f3digo remota (RCE). Al enviar continuamente estos paquetes espec\u00edficos, un atacante puede bloquear repetidamente el daemon radius, causando una Denegaci\u00f3n de Servicio (DoS) sostenida. Este problema afecta a Juniper Networks SBR Carrier: versiones 8.4.1 anteriores a 8.4.1R19; versiones 8.5.0 anteriores a 8.5.0R10; versiones 8.6.0 anteriores a 8.6.0R4"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "sirt@juniper.net",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "source": "sirt@juniper.net",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:juniper:steel-belted_radius_carrier:8.4.1:-:*:*:*:*:*:*",
              "matchCriteriaId": "8BE22F9D-096C-4826-837D-81AC0DE6243E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:juniper:steel-belted_radius_carrier:8.4.1:r13:*:*:*:*:*:*",
              "matchCriteriaId": "167FBC0D-C9C4-4F38-A0E5-55C9E0E9027F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:juniper:steel-belted_radius_carrier:8.5.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "433CE00E-8213-424D-8B71-F4306134C857"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:juniper:steel-belted_radius_carrier:8.5.0:r4:*:*:*:*:*:*",
              "matchCriteriaId": "0EAAB90E-A473-4EFD-A9A6-05807873712C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:juniper:steel-belted_radius_carrier:8.6.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C96D4A3-BAD8-42BE-A1AE-F3719BD8A7F5"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://kb.juniper.net/JSA11180",
      "source": "sirt@juniper.net",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}