{
  "id": "CVE-2021-3682",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2021-08-05T20:15:09.963",
  "lastModified": "2023-03-31T18:26:51.630",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en la emulaci\u00f3n del dispositivo redirector USB de QEMU en versiones anteriores a 6.1.0-rc2. Ocurre cuando se abandonan paquetes durante una transferencia masiva desde un cliente SPICE debido a que la queue de paquetes est\u00e1 lleno. Un cliente SPICE malicioso podr\u00eda usar este fallo para hacer que QEMU llame a la funci\u00f3n free() con metadatos de trozos de pila falsificados, resultando en un bloqueo de QEMU o la posible ejecuci\u00f3n de c\u00f3digo con los privilegios del proceso QEMU en el host"
    }
  ],
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        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 6.0
      }
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          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 6.8,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
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      "source": "secalert@redhat.com",
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      "description": [
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  "references": [
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1989651",
      "source": "secalert@redhat.com",
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      "url": "https://security.gentoo.org/glsa/202208-27",
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      "url": "https://security.netapp.com/advisory/ntap-20210902-0006/",
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}