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CVE-2022-46891

Estado: ModificadaAlta (8.8)—

An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r13p0 through r32p0, Bifrost r1p0 through r40p0, and Valhall r19p0 through r40p0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

ARM — Bifrost GPU Kernel DriverARM — Midgard GPU Kernel DriverARM — Valhall GPU Kernel Driver

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-46891",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-46891",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2023-12-20T17:32:35.513596Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-01-17T08:15:10.453",
  "references": [
    {
      "url": "https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r13p0 through r32p0, Bifrost r1p0 through r40p0, and Valhall r19p0 through r40p0."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en el controlador del kernel de GPU Arm Mali. Hay un use-after-free. Un usuario sin privilegios puede realizar operaciones de procesamiento de GPU incorrectas para obtener acceso a la memoria ya liberada. Esto afecta a Midgard r13p0 a r32p0, Bifrost r1p0 a r40p0 y Valhall r19p0 a r40p0."
    }
  ],
  "lastModified": "2026-06-17T05:12:38.367",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "48F069A5-6E3A-4E30-A69A-CCA50D66E8B0",
              "versionEndIncluding": "r40p0",
              "versionStartIncluding": "r1p0"
            },
            {
              "criteria": "cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "48B2F411-CC76-4D35-98DB-1CC997C36F84",
              "versionEndIncluding": "r32p0",
              "versionStartIncluding": "r13p0"
            },
            {
              "criteria": "cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6BB9E6B-1620-486F-98C5-397292AA1EB4",
              "versionEndIncluding": "r40p0",
              "versionStartIncluding": "r19p0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}