fkie_cve-2022-48730
Vulnerability from fkie_nvd
Published
2024-06-20 12:15
Modified
2025-01-06 21:33
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fix potential spectre v1 gadget It appears like nr could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec. [sumits: added fixes and cc: stable tags]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bedPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bedPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17
linux linux_kernel 5.17


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B69CC532-C65F-4966-A226-22878B182DF5",
              "versionEndExcluding": "5.10.99",
              "versionStartIncluding": "5.6",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-buf: heaps: Fix potential spectre v1 gadget\n\nIt appears like nr could be a Spectre v1 gadget as it\u0027s supplied by a\nuser and used as an array index. Prevent the contents\nof kernel memory from being leaked to userspace via speculative\nexecution by using array_index_nospec.\n\n [sumits: added fixes and cc: stable tags]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-buf: heaps: repara un posible gadget de Spectre v1. Parece que nr podr\u00eda ser un gadget de Spectre v1, ya que lo proporciona un usuario y se utiliza como \u00edndice de matriz. Evite que el contenido de la memoria del kernel se filtre al espacio de usuario mediante ejecuci\u00f3n especulativa utilizando array_index_nospec. [presenta: correcciones agregadas y cc: etiquetas estables]"
    }
  ],
  "id": "CVE-2022-48730",
  "lastModified": "2025-01-06T21:33:14.060",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-06-20T12:15:11.430",
  "references": [
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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