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CVE-2002-0839

Estado: ModificadaAlta (7.2)—

The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.

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 (2)

Apache — Http ServerDebian — Debian Linux

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2002-0839",
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          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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  "published": "2002-10-11T04:00:00.000",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard."
    },
    {
      "lang": "es",
      "value": "La tabla de puntuaciones (scoreboard) en memoria compartida del demonio HTTP en Apache 1.3.x anteriores a 1.3.27 permite a cualquier usuario corriendo con la UID de Apache enviar un señas SIGUSR1 a cualquier proceso como root, resultando en un a denegación de servicio (muerte de proceso) o posiblemente otros comportamientos no no serian permitidos normalmente, mediane la modificación de los segmentos parent[].pid y parent[].last_rtime en los segmentos de la tabla de puntuaciones."
    }
  ],
  "lastModified": "2026-06-16T21:58:14.063",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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          "operator": "OR"
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  ],
  "vendorComments": [
    {
      "comment": "Fixed in Apache HTTP Server 1.3.27:\nhttp://httpd.apache.org/security/vulnerabilities_13.html",
      "lastModified": "2008-07-02T00:00:00",
      "organization": "Apache"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}