FKIE_CVE-2024-36935

Vulnerability from fkie_nvd - Published: 2024-05-30 16:15 - Updated: 2025-01-15 18:38
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: ensure the copied buf is NUL terminated Currently, we allocate a count-sized kernel buffer and copy count bytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5ff4de981983ed84f29b5d92b6550ec054e12a92Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/666854ea9cad844f75a068f32812a2d78004914aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5ff4de981983ed84f29b5d92b6550ec054e12a92Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/666854ea9cad844f75a068f32812a2d78004914aPatch
Impacted products
Vendor Product Version
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
linux linux_kernel 6.9
To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: ensure the copied buf is NUL terminated\n\nCurrently, we allocate a count-sized kernel buffer and copy count bytes\nfrom userspace to that buffer. Later, we use sscanf on this buffer but we\ndon\u0027t ensure that the string is terminated inside the buffer, this can lead\nto OOB read when using sscanf. Fix this issue by using memdup_user_nul\ninstead of memdup_user."
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      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ice: aseg\u00farese de que el buf copiado tenga terminaci\u00f3n NUL. Actualmente, asignamos un b\u00fafer del kernel del tama\u00f1o de un conteo y copiamos el conteo de bytes del espacio de usuario a ese b\u00fafer. M\u00e1s adelante, usamos sscanf en este b\u00fafer pero no nos aseguramos de que la cadena termine dentro del b\u00fafer, esto puede provocar una lectura OOB cuando usamos sscanf. Solucione este problema utilizando memdup_user_nul en lugar de memdup_user."
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  "id": "CVE-2024-36935",
  "lastModified": "2025-01-15T18:38:18.097",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
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          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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