fkie_cve-2023-0459
Vulnerability from fkie_nvd
Published
2023-05-25 14:15
Modified
2024-11-21 07:37
Summary
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47



{
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      "nodes": [
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              "matchCriteriaId": "891AEAFE-6900-48E0-A0EA-B80FCE04588D",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the \"access_ok\" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit\u00a074e19ef0ff8061ef55957c3abd71614ef0f42f47"
    }
  ],
  "id": "CVE-2023-0459",
  "lastModified": "2024-11-21T07:37:13.187",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "cve-coordination@google.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2023-05-25T14:15:09.603",
  "references": [
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      "source": "cve-coordination@google.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c"
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      "source": "cve-coordination@google.com",
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  "sourceIdentifier": "cve-coordination@google.com",
  "vulnStatus": "Modified",
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          "value": "CWE-763"
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      "type": "Secondary"
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      "description": [
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          "lang": "en",
          "value": "CWE-763"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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