{
  "id": "CVE-2021-3713",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2021-08-25T19:15:15.073",
  "lastModified": "2022-10-25T20:37:34.280",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un fallo de escritura fuera de l\u00edmites en la emulaci\u00f3n del dispositivo UAS (USB Attached SCSI) de QEMU en versiones anteriores a 6.2.0-rc0. El dispositivo usa el n\u00famero de flujo suministrado por el hu\u00e9sped sin comprobar, lo que puede conllevar a un acceso fuera de l\u00edmites a los campos UASDevice-)data3 y UASDevice-)status3. Un usuario invitado malicioso podr\u00eda usar este fallo para bloquear QEMU o lograr potencialmente una ejecuci\u00f3n de c\u00f3digo con los privilegios del proceso QEMU en el host."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "attackVector": "PHYSICAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 0.7,
        "impactScore": 6.0
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "LOCAL",
          "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,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "secalert@redhat.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "6.1.0",
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    {
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          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
            },
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              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1994640",
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
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    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html",
      "source": "secalert@redhat.com",
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      "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html",
      "source": "secalert@redhat.com",
      "tags": [
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    },
    {
      "url": "https://security.gentoo.org/glsa/202208-27",
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
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    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20210923-0006/",
      "source": "secalert@redhat.com",
      "tags": [
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    {
      "url": "https://www.debian.org/security/2021/dsa-4980",
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}