{
  "id": "CVE-2023-38431",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-07-18T00:15:09.707",
  "lastModified": "2023-08-24T19:15:39.913",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.3.8",
              "matchCriteriaId": "733A9846-73C9-4358-B8ED-2560AEC047D2"
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  ],
  "references": [
    {
      "url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb/server?id=368ba06881c395f1c9a7ba22203cf8d78b4addc0",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20230824-0011/",
      "source": "cve@mitre.org"
    }
  ]
}