{
  "id": "CVE-2021-28664",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-05-10T15:15:07.590",
  "lastModified": "2022-10-27T21:15:09.857",
  "vulnStatus": "Modified",
  "cisaExploitAdd": "2021-11-03",
  "cisaActionDue": "2021-11-17",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Arm Mali GPU Kernel Boundary Error Vulnerability",
  "descriptions": [
    {
      "lang": "en",
      "value": "The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. This affects Bifrost r0p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0."
    },
    {
      "lang": "es",
      "value": "El controlador del kernel de la GPU Arm Mali permite una escalada de privilegios o una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria) porque un usuario sin privilegios puede conseguir acceso de lectura/escritura a p\u00e1ginas de s\u00f3lo lectura. Esto afecta a Bifrost r0p0 hasta r29p0 antes de r30p0, Valhall r19p0 hasta r29p0 antes de r30p0, y Midgard r8p0 hasta r30p0 antes de r31p0"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.0
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 8.0,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "r0p0",
              "versionEndIncluding": "r28p0",
              "matchCriteriaId": "86D3D5C7-EF1B-401B-836C-79FD7C16B5CA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:arm:midguard_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "r8p0",
              "versionEndIncluding": "r30p0",
              "matchCriteriaId": "20E40FCD-B110-4D33-9696-E97159E435DD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "r19p0",
              "versionEndIncluding": "r28p0",
              "matchCriteriaId": "3D901BF7-E72F-4BC7-96DD-FC9D87F3AE8A"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://developer.arm.com/support/arm-security-updates",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}