« Volver al listado

CVE-2025-68302

Estado: AplazadaAlta (7.5)—

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

net: sxgbe: fix potential NULL dereference in sxgbe_rx()

Currently, when skb is null, the driver prints an error and then dereferences skb on the next line.

To fix this, let's add a 'break' after the error message to switch to sxgbe_rx_refill(), which is similar to the approach taken by the other drivers in this particular case, e.g. calxeda with xgmac_rx().

Found during a code review.

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:N/PR:N sin UI sugiere red sin privilegios (T1190), pero el defecto es NULL dereference en driver de red que causa DoS. Confianza baja en explotación: requiere condiciones específicas de paquete malformado.

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

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-2025-68302",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "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": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "ac171c3c755499c9f87fe30b920602255f8b5648",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "18ef3ad1bb57dcf1a9ee61736039aedccf670b21",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "46e5332126596a2ca791140feab18ce1fc1a3c86",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "7fd789d6ea4915034eb6bcb72f6883c8151083e5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "88f46c0be77bfe45830ac33102c75be7c34ac3f3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1edb9ca69e8a7988900fc0283e10550b5592164d",
              "lessThan": "f5bce28f6b9125502abec4a67d68eabcd24b3b17",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.119",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.61",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T16:16:09.727",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/18ef3ad1bb57dcf1a9ee61736039aedccf670b21",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/45b5b4ddb8d6bea5fc1625ff6f163bbb125d49cc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/46e5332126596a2ca791140feab18ce1fc1a3c86",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7fd789d6ea4915034eb6bcb72f6883c8151083e5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/88f46c0be77bfe45830ac33102c75be7c34ac3f3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac171c3c755499c9f87fe30b920602255f8b5648",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f5bce28f6b9125502abec4a67d68eabcd24b3b17",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sxgbe: fix potential NULL dereference in sxgbe_rx()\n\nCurrently, when skb is null, the driver prints an error and then\ndereferences skb on the next line.\n\nTo fix this, let's add a 'break' after the error message to switch\nto sxgbe_rx_refill(), which is similar to the approach taken by the\nother drivers in this particular case, e.g. calxeda with xgmac_rx().\n\nFound during a code review."
    }
  ],
  "lastModified": "2026-07-30T06:24:37.347",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}