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CVE-2024-50120

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

smb: client: Handle kstrdup failures for passwords

In smb3_reconfigure(), after duplicating ctx->password and ctx->password2 with kstrdup(), we need to check for allocation failures.

If ses->password allocation fails, return -ENOMEM. If ses->password2 allocation fails, free ses->password, set it to NULL, and return -ENOMEM.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-50120",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "lessThan": "35dbac8c328d6afe937cd45ecd41d209d0b9f8b8",
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            {
              "status": "affected",
              "version": "6.8.3",
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              "versionType": "semver"
            }
          ],
          "programFiles": [
            "fs/smb/client/fs_context.c"
          ],
          "defaultStatus": "unaffected"
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        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "affected",
              "version": "6.9"
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              "version": "0",
              "lessThan": "6.9",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/smb/client/fs_context.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2024-11-05T18:15:15.023",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/35488799b0ab6e4327f82e1d9209a60805665b37",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/35dbac8c328d6afe937cd45ecd41d209d0b9f8b8",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9a5dd61151399ad5a5d69aad28ab164734c1e3bc",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Handle kstrdup failures for passwords\n\nIn smb3_reconfigure(), after duplicating ctx->password and\nctx->password2 with kstrdup(), we need to check for allocation\nfailures.\n\nIf ses->password allocation fails, return -ENOMEM.\nIf ses->password2 allocation fails, free ses->password, set it\nto NULL, and return -ENOMEM."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: Manejar errores de kstrdup para contraseñas. En smb3_reconfigure(), después de duplicar ctx->password y ctx->password2 con kstrdup(), debemos verificar si hay errores de asignación. Si la asignación de ses->password falla, devuelva -ENOMEM. Si la asignación de ses->password2 falla, libere ses->password, configúrelo en NULL y devuelva -ENOMEM."
    }
  ],
  "lastModified": "2026-06-17T08:03:38.453",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndExcluding": "6.6.59",
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            },
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}