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CVE-2023-34320

Estado: ModificadaMedia (5.5)—

Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register (PAR_EL1) in close proximity.

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 (2)

ARM — Cortex-a77 FirmwareXEN — XEN

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2023-34320",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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      "affectedData": [
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          "versions": [
            {
              "status": "unknown",
              "version": "consult Xen advisory XSA-436"
            }
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          "defaultStatus": "unknown"
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  ],
  "published": "2023-12-08T21:15:07.353",
  "references": [
    {
      "url": "https://xenbits.xenproject.org/xsa/advisory-436.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@xen.org"
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      "url": "http://xenbits.xen.org/xsa/advisory-436.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-667"
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      "value": "Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412\nwhere software, under certain circumstances, could deadlock a core\ndue to the execution of either a load to device or non-cacheable memory,\nand either a store exclusive or register read of the Physical\nAddress Register (PAR_EL1) in close proximity.\n"
    },
    {
      "lang": "es",
      "value": "Los núcleos Cortex-A77 (r0p0 y r1p0) se ven afectados por la errata 1508412 donde el software, bajo ciertas circunstancias, podría bloquear un núcleo debido a la ejecución de una carga en el dispositivo o de una memoria no almacenable en caché, y una lectura exclusiva de la tienda o del registro de el Registro de Direcciones Físicas (PAR_EL1) muy cerca."
    }
  ],
  "lastModified": "2026-06-17T06:03:22.900",
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