nvd-json-data-feeds/CVE-2022/CVE-2022-489xx/CVE-2022-48997.json

{
  "id": "CVE-2022-48997",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-10-21T20:15:11.503",
  "lastModified": "2024-11-07T17:07:08.743",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nchar: tpm: Protect tpm_pm_suspend with locks\n\nCurrently tpm transactions are executed unconditionally in\ntpm_pm_suspend() function, which may lead to races with other tpm\naccessors in the system.\n\nSpecifically, the hw_random tpm driver makes use of tpm_get_random(),\nand this function is called in a loop from a kthread, which means it's\nnot frozen alongside userspace, and so can race with the work done\nduring system suspend:\n\n  tpm tpm0: tpm_transmit: tpm_recv: error -52\n  tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics\n  CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014\n  Call Trace:\n   tpm_tis_status.cold+0x19/0x20\n   tpm_transmit+0x13b/0x390\n   tpm_transmit_cmd+0x20/0x80\n   tpm1_pm_suspend+0xa6/0x110\n   tpm_pm_suspend+0x53/0x80\n   __pnp_bus_suspend+0x35/0xe0\n   __device_suspend+0x10f/0x350\n\nFix this by calling tpm_try_get_ops(), which itself is a wrapper around\ntpm_chip_start(), but takes the appropriate mutex.\n\n[Jason: reworked commit message, added metadata]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: char: tpm: Proteger tpm_pm_suspend con bloqueos Actualmente, las transacciones tpm se ejecutan incondicionalmente en la funci\u00f3n tpm_pm_suspend(), lo que puede generar ejecuciones con otros accesores tpm en el sistema. Espec\u00edficamente, el controlador tpm hw_random hace uso de tpm_get_random(), y esta funci\u00f3n se llama en un bucle desde un kthread, lo que significa que no est\u00e1 congelada junto con el espacio de usuario, y por lo tanto puede competir con el trabajo realizado durante la suspensi\u00f3n del sistema: tpm tpm0: tpm_transmit: tpm_recv: error -52 tpm tpm0: TPM_STS.x 0xff no v\u00e1lido, volcando pila para an\u00e1lisis forense CPU: 0 PID: 1 Comm: init No contaminado 6.1.0-rc5+ #135 Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Rastreo de llamadas: tpm_tis_status.cold+0x19/0x20 tpm_transmit+0x13b/0x390 tpm_transmit_cmd+0x20/0x80 tpm1_pm_suspend+0xa6/0x110 tpm_pm_suspend+0x53/0x80 __pnp_bus_suspend+0x35/0xe0 __device_suspend+0x10f/0x350 Solucione este problema llamando a tpm_try_get_ops(), que es un contenedor de tpm_chip_start(), pero toma el mutex apropiado. [Jason: mensaje de confirmaci\u00f3n redise\u00f1ado, metadatos agregados]"
    }
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6
      }
    ]
  },
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    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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