fkie_cve-2024-38566
Vulnerability from fkie_nvd
Published
2024-06-19 14:15
Modified
2025-09-17 21:04
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket->sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7D9DC6CF-DE3D-4E7E-BF42-5EBCCB0F3D34",
              "versionEndExcluding": "6.6.33",
              "versionStartIncluding": "6.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "80550309-67AB-4FD1-AC07-3DED5C4F01B2",
              "versionEndExcluding": "6.8.12",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E07124C1-19E8-4D21-828D-9932A01D3011",
              "versionEndExcluding": "6.9.3",
              "versionStartIncluding": "6.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix verifier assumptions about socket-\u003esk\n\nThe verifier assumes that \u0027sk\u0027 field in \u0027struct socket\u0027 is valid\nand non-NULL when \u0027socket\u0027 pointer itself is trusted and non-NULL.\nThat may not be the case when socket was just created and\npassed to LSM socket_accept hook.\nFix this verifier assumption and adjust tests."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: corrige las suposiciones del verificador sobre socket-\u0026gt;sk. El verificador asume que el campo \u0027sk\u0027 en \u0027struct socket\u0027 es v\u00e1lido y no NULL cuando el puntero \u0027socket\u0027 en s\u00ed es confiable y no NULL. Puede que ese no sea el caso cuando el socket se acaba de crear y se pas\u00f3 al gancho LSM socket_accept. Corrija esta suposici\u00f3n del verificador y ajuste las pruebas."
    }
  ],
  "id": "CVE-2024-38566",
  "lastModified": "2025-09-17T21:04:44.907",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-06-19T14:15:16.767",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e"
    },
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    },
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    },
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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      "tags": [
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      "url": "https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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