FKIE_CVE-2024-26936

Vulnerability from fkie_nvd - Published: 2024-05-01 06:15 - Updated: 2025-09-18 14:19
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate request buffer size in smb2_allocate_rsp_buf() The response buffer should be allocated in smb2_allocate_rsp_buf before validating request. But the fields in payload as well as smb2 header is used in smb2_allocate_rsp_buf(). This patch add simple buffer size validation to avoid potencial out-of-bounds in request buffer.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
To clipboard 

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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: validate request buffer size in smb2_allocate_rsp_buf()\n\nThe response buffer should be allocated in smb2_allocate_rsp_buf\nbefore validating request. But the fields in payload as well as smb2 header\nis used in smb2_allocate_rsp_buf(). This patch add simple buffer size\nvalidation to avoid potencial out-of-bounds in request buffer."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: validar el tama\u00f1o del b\u00fafer de solicitud en smb2_allocate_rsp_buf() El b\u00fafer de respuesta debe asignarse en smb2_allocate_rsp_buf antes de validar la solicitud. Pero los campos en el payload y el encabezado smb2 se usan en smb2_allocate_rsp_buf(). Este parche agrega una validaci\u00f3n simple del tama\u00f1o del b\u00fafer para evitar posibles l\u00edmites en el b\u00fafer de solicitud."
    }
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  "id": "CVE-2024-26936",
  "lastModified": "2025-09-18T14:19:00.480",
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          "attackVector": "LOCAL",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2024-05-01T06:15:08.833",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Detection rules are retrieved from Rulezet.