FKIE_CVE-2024-26980

Vulnerability from fkie_nvd - Published: 2024-05-01 06:15 - Updated: 2025-11-04 18:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf If ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size validation could be skipped. if request size is smaller than sizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in smb2_allocate_rsp_buf(). This patch allocate response buffer after decrypting transform request. smb3_decrypt_req() will validate transform request size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0977f89722eceba165700ea384f075143f012085Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3160d9734453a40db248487f8204830879c207f1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b80ba648714e6d790d69610cf14656be222d0248Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c119f4ede3fa90a9463f50831761c28f989bfb20Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da21401372607c49972ea87a6edaafb36a17c325Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0977f89722eceba165700ea384f075143f012085Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3160d9734453a40db248487f8204830879c207f1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b80ba648714e6d790d69610cf14656be222d0248Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c119f4ede3fa90a9463f50831761c28f989bfb20Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/da21401372607c49972ea87a6edaafb36a17c325Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
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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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf\n\nIf -\u003eProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size\nvalidation could be skipped. if request size is smaller than\nsizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in\nsmb2_allocate_rsp_buf(). This patch allocate response buffer after\ndecrypting transform request. smb3_decrypt_req() will validate transform\nrequest size and avoid slab-out-of-bound in smb2_allocate_rsp_buf()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ksmbd: corrige slab-out-of-bounds en smb2_allocate_rsp_buf Si -\u0026gt;ProtocolId es SMB2_TRANSFORM_PROTO_NUM, se podr\u00eda omitir la validaci\u00f3n del tama\u00f1o de la solicitud smb2. Si el tama\u00f1o de la solicitud es menor que sizeof (struct smb2_query_info_req), la lectura de losa fuera de los l\u00edmites puede ocurrir en smb2_allocate_rsp_buf(). Este parche asigna un b\u00fafer de respuesta despu\u00e9s de descifrar la solicitud de transformaci\u00f3n. smb3_decrypt_req() validar\u00e1 el tama\u00f1o de la solicitud de transformaci\u00f3n y evitar\u00e1 la losa fuera de los l\u00edmites en smb2_allocate_rsp_buf()."
    }
  ],
  "id": "CVE-2024-26980",
  "lastModified": "2025-11-04T18:15:56.347",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
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  "published": "2024-05-01T06:15:15.423",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-125"
        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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  • 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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