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CVE-2025-0662

Estado: AplazadaMedia (4.9)—

In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.

It is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.

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)

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

Freebsd — FreebsdAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-0662",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-0662",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-30T15:20:56.339386Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "secteam@freebsd.org",
      "affectedData": [
        {
          "vendor": "FreeBSD",
          "modules": [
            "ktrace"
          ],
          "product": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "14.2-RELEASE",
              "lessThan": "p1",
              "versionType": "release"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2025-01-30T05:15:10.653",
  "references": [
    {
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-25:04.ktrace.asc",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20250207-0006/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secteam@freebsd.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In some cases, the ktrace facility will log the contents of kernel structures to userspace.  In one such case, ktrace dumps a variable-sized sockaddr to userspace.  There, the full sockaddr is copied, even when it is shorter than the full size.  This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.\n\nIt is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace."
    },
    {
      "lang": "es",
      "value": "En algunos casos, la función ktrace registra el contenido de las estructuras del núcleo en el espacio de usuario. En uno de esos casos, ktrace envía una dirección sockaddr de tamaño variable al espacio de usuario. Allí, se copia la dirección sockaddr completa, incluso cuando es más corta que el tamaño completo. Esto puede provocar que se copien al espacio de usuario hasta 14 bytes no inicializados de memoria del núcleo. Es posible que un programa de espacio de usuario sin privilegios filtre 14 bytes de una asignación de montón del núcleo al espacio de usuario."
    }
  ],
  "lastModified": "2026-06-17T08:26:55.293",
  "sourceIdentifier": "secteam@freebsd.org"
}