« Volver al listado

CVE-2026-47331

Estado: AnalizadaAlta (7.8)—

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

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.

Acceso local sin interacción (AV:L, PR:L, UI:N) con impacto en confidencialidad, integridad y disponibilidad. UAF en AppArmor permite escalada de privilegios para ejecución arbitraria de código.

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

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-47331",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47331",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-28T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@ubuntu.com",
        "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": "security@ubuntu.com",
      "affectedData": [
        {
          "repo": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/",
          "vendor": "Canonical",
          "modules": [
            "AppArmor"
          ],
          "product": "Ubuntu Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8.0",
              "lessThan": "6.8.0-124.124",
              "versionType": "dpkg"
            }
          ],
          "packageName": "linux",
          "collectionURL": "https://launchpad.net/ubuntu/+source/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-28T19:16:41.757",
  "references": [
    {
      "url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=5e5cd4759b63363373faf1ce15d1cab3606d6ec8",
      "tags": [
        "Patch"
      ],
      "source": "security@ubuntu.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@ubuntu.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution."
    }
  ],
  "lastModified": "2026-06-17T10:54:31.357",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "62D1BEC7-1A71-4991-A1A5-0E3D282100EC"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "68D562DD-F22D-4310-93C7-7DE817104CAC"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:26.04:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2BB2642A-AA54-4949-A9FC-0E9673539350"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@ubuntu.com"
}