nvd-json-data-feeds/CVE-2020/CVE-2020-294xx/CVE-2020-29481.json

{
  "id": "CVE-2020-29481",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-12-15T18:15:15.067",
  "lastModified": "2021-07-21T11:39:23.747",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Xen through 4.14.x. Access rights of Xenstore nodes are per domid. Unfortunately, existing granted access rights are not removed when a domain is being destroyed. This means that a new domain created with the same domid will inherit the access rights to Xenstore nodes from the previous domain(s) with the same domid. Because all Xenstore entries of a guest below /local/domain/<domid> are being deleted by Xen tools when a guest is destroyed, only Xenstore entries of other guests still running are affected. For example, a newly created guest domain might be able to read sensitive information that had belonged to a previously existing guest domain. Both Xenstore implementations (C and Ocaml) are vulnerable."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Xen versiones hasta 4.14.x.&#xa0;Los derechos de acceso de los nodos de Xenstore son per domid. Desafortunadamente, los derechos de acceso concedidos existentes no son eliminados cuando un dominio ha sido destruido.&#xa0;Esto significa que un nuevo dominio creado con el mismo domid heredar\u00e1 los derechos de acceso a los nodos de Xenstore de los dominios anteriores con el mismo domid.&#xa0;Debido a que todas las entradas de Xenstore de un invitado por debajo /local/domain/(domid) han sido eliminadas por las herramientas Xen, cuando un invitado es destruido; solo las entradas Xenstore de otros invitados que a\u00fan se est\u00e9n ejecutando est\u00e1n afectadas.&#xa0;Por ejemplo, un dominio invitado reci\u00e9n creado puede ser capaz de leer informaci\u00f3n confidencial que perteneciera a un dominio invitado previamente existente.&#xa0;Ambas implementaciones de Xenstore (C y Ocaml) son vulnerables"
    }
  ],
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 2.0,
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          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
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          "value": "CWE-269"
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  "references": [
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      "url": "http://www.openwall.com/lists/oss-security/2020/12/16/3",
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      "url": "https://xenbits.xenproject.org/xsa/advisory-322.html",
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