nvd-json-data-feeds/CVE-2021/CVE-2021-42xx/CVE-2021-4206.json

{
  "id": "CVE-2021-4206",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2022-04-29T17:15:20.023",
  "lastModified": "2022-09-23T15:13:45.450",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en la emulaci\u00f3n del dispositivo de visualizaci\u00f3n QXL en QEMU. Un desbordamiento de enteros en la funci\u00f3n cursor_alloc() puede conllevar a una asignaci\u00f3n de un peque\u00f1o objeto cursor seguido de un posterior desbordamiento del b\u00fafer en la regi\u00f3n heap de la memoria. Este fallo permite a un usuario invitado con privilegios maliciosos bloquear el proceso QEMU en el host o ejecutar potencialmente c\u00f3digo arbitrario dentro del contexto del proceso QEMU"
    }
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 1.5,
        "impactScore": 6.0
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          "baseScore": 4.6
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        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036998",
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
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      "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html",
      "source": "secalert@redhat.com",
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      "url": "https://security.gentoo.org/glsa/202208-27",
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}