« Volver al listado

CVE-2015-0843

Estado: AnalizadaCrítica (9.8)—

yubiserver before 0.6 is prone to buffer overflows due to misuse of sprintf.

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.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-120 (buffer overflow en sprintf) permite ejecución arbitraria de código (T1059). Aplicación web yubiserver expuesta en red.

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

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Debian — Yubiserver

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2015-0843",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2015-0843",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-27T18:37:53.138558Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@debian.org",
      "affectedData": [
        {
          "vendor": "yubiserver",
          "product": "yubiserver",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "0.6",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-06-26T22:15:24.613",
  "references": [
    {
      "url": "http://www.include.gr/debian/yubiserver/#changelog",
      "tags": [
        "Release Notes"
      ],
      "source": "security@debian.org"
    },
    {
      "url": "https://bugs.debian.org/796495",
      "tags": [
        "Issue Tracking",
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@debian.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "yubiserver before 0.6 is prone to buffer overflows due to misuse of sprintf."
    },
    {
      "lang": "es",
      "value": "yubiserver anterior a 0.6 es propenso a desbordamientos de búfer debido al mal uso de sprintf."
    }
  ],
  "lastModified": "2026-06-17T00:21:01.263",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:debian:yubiserver:0.2-2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D614D391-8673-4584-8724-4FE5BCA49181"
            },
            {
              "criteria": "cpe:2.3:a:debian:yubiserver:0.5-2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8AB6A149-B93B-4950-A2C3-40CC5707A902"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@debian.org"
}