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CVE-2022-42464

Estado: ModificadaAlta (7.8)—

OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot.

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 (1)

Openharmony — Openharmony

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-42464",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2022-42464",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-14T15:11:17.660462Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "scy@openharmony.io",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 0.8
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          "attackVector": "LOCAL",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2022-10-14T15:16:25.617",
  "references": [
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      "url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md",
      "tags": [
        "Vendor Advisory"
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      "source": "scy@openharmony.io"
    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "scy@openharmony.io",
      "description": [
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          "lang": "en",
          "value": "CWE-276"
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-276"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot."
    },
    {
      "lang": "es",
      "value": "OpenHarmony versiones v3.1.2 y versiones anteriores, 3.0.6 y versiones anteriores, presentan una vulnerabilidad de anulación del pool de memoria del Kernel en el controlador de dispositivo /dev/mmz_userdev. El impacto depende de los privilegios del atacante. El proceso no privilegiado que sea ejecutado en el dispositivo podría divulgar información confidencial, incluyendo el puntero del kernel, que podría ser usado en otros ataques. Los procesos con UID de usuario del sistema que es ejecutado en el dispositivo podrían mmap pools de memoria usados por el kernel y anularlos, lo que podría usarse para obtener una ejecución de código del kernel en el dispositivo, obtener privilegios de root o causar el reinicio del dispositivo"
    }
  ],
  "lastModified": "2026-06-17T05:04:58.250",
  "configurations": [
    {
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          "negate": false,
          "cpeMatch": [
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