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CVE-2024-47677

Estado: AnalizadaMedia (5.5)—

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

exfat: resolve memory leak from exfat_create_upcase_table()

If exfat_load_upcase_table reaches end and returns -EINVAL, allocated memory doesn't get freed and while exfat_load_default_upcase_table allocates more memory, leading to a memory leak.

Here's link to syzkaller crash report illustrating this issue: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000

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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          "integrityImpact": "NONE",
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          "attackComplexity": "LOW",
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          "value": "CWE-401"
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: resolve memory leak from exfat_create_upcase_table()\n\nIf exfat_load_upcase_table reaches end and returns -EINVAL,\nallocated memory doesn't get freed and while\nexfat_load_default_upcase_table allocates more memory, leading to a\nmemory leak.\n\nHere's link to syzkaller crash report illustrating this issue:\nhttps://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: exfat: resuelve la pérdida de memoria de exfat_create_upcase_table() Si exfat_load_upcase_table llega al final y devuelve -EINVAL, la memoria asignada no se libera y mientras exfat_load_default_upcase_table asigna más memoria, lo que provoca una pérdida de memoria. Aquí hay un enlace al informe de fallos de syzkaller que ilustra este problema: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000"
    }
  ],
  "lastModified": "2026-06-17T07:57:31.133",
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