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CVE-2003-0955

Estado: ModificadaMedia (4.6)—💥 Exploit

OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Openbsd — Openbsd

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2003-0955",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2003-12-15T05:00:00.000",
  "references": [
    {
      "url": "ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.guninski.com/msuxobsd2.html",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openbsd.org/errata33.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/8978",
      "source": "cve@mitre.org"
    },
    {
      "url": "ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.4/common/005_exec.patch",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/013315.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://marc.info/?l=openbsd-security-announce&m=106808820119679&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://marc.info/?l=openbsd-security-announce&m=106917441524978&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.guninski.com/msuxobsd2.html",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.openbsd.org/errata33.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/8978",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow."
    },
    {
      "lang": "es",
      "value": "El Kernel OpenBSD 3.3 y 3.4 permite que usuarios locales causen una denegación de servicio (kernel panic) y posiblemente ejecuten código arbitrario en 3.4 mediante un programa con una cabecera inválida. Esto no lo maneja adecuadamente en (1) bcs2_exec.c o (2) exec_elf.c, que lleva a un desbordamiento de búfer."
    }
  ],
  "lastModified": "2026-06-16T22:03:14.210",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AC46909F-DDFC-448B-BCDF-1EB343F96630"
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9496279F-AB43-4B53-81A6-87C651ABC4BA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}