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CVE-2023-53838

Estado: AplazadaAlta (7.8)—

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

f2fs: synchronize atomic write aborts

To fix a race condition between atomic write aborts, I use the inode lock and make COW inode to be re-usable thoroughout the whole atomic file inode lifetime.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L, PR:L, UI:N indica escalada local sin interacción (T1068). Race condition en f2fs permite modificar datos (C:H, I:H) o causar DoS (A:H) con permisos elevados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramRestrict File and Directory PermissionsRemote Data StorageFilter Network TrafficExecution PreventionEncrypt Sensitive Information

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-53838",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3db1de0e582c358dd013f3703cd55b5fe4076436",
              "lessThan": "102b82708c1523b36d421cb8687746906069bc17",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3db1de0e582c358dd013f3703cd55b5fe4076436",
              "lessThan": "b7724360714642099cec907f54f42e55f5325453",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3db1de0e582c358dd013f3703cd55b5fe4076436",
              "lessThan": "a46bebd502fe1a3bd1d22f64cedd93e7e7702693",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6db52f1944417c2601182a591a704e2f119c5215",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.18.18",
              "lessThan": "5.19",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "fs/f2fs/file.c",
            "fs/f2fs/inode.c",
            "fs/f2fs/segment.c",
            "fs/f2fs/super.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.19",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.18",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/f2fs/file.c",
            "fs/f2fs/inode.c",
            "fs/f2fs/segment.c",
            "fs/f2fs/super.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-09T16:17:23.400",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/102b82708c1523b36d421cb8687746906069bc17",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a46bebd502fe1a3bd1d22f64cedd93e7e7702693",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b7724360714642099cec907f54f42e55f5325453",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: synchronize atomic write aborts\n\nTo fix a race condition between atomic write aborts, I use the inode\nlock and make COW inode to be re-usable thoroughout the whole\natomic file inode lifetime."
    }
  ],
  "lastModified": "2026-08-04T10:19:23.710",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}