fkie_cve-2023-4130
Vulnerability from fkie_nvd
Published
2025-08-16 14:15
Modified
2025-08-16 14:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()\n\nThere are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request\nfrom client. ksmbd find next smb2_ea_info using -\u003eNextEntryOffset of\ncurrent smb2_ea_info. ksmbd need to validate buffer length Before\naccessing the next ea. ksmbd should check buffer length using buf_len,\nnot next variable. next is the start offset of current ea that got from\nprevious ea."
    }
  ],
  "id": "CVE-2023-4130",
  "lastModified": "2025-08-16T14:15:27.640",
  "metrics": {},
  "published": "2025-08-16T14:15:27.640",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4bf629262f9118ee91b1c3a518ebf2b3bcb22180"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/79ed288cef201f1f212dfb934bcaac75572fb8f6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aeb974907642be095e38ecb1a400ca583958b2b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f339d76a3a972601d0738b881b099d49ebbdc3a2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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