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CVE-2009-2620

Estado: AnalizadaMedia (5)—

src/remote/server.cpp in fbserver.exe in Firebird SQL 1.5 before 1.5.6, 2.0 before 2.0.6, 2.1 before 2.1.3, and 2.5 before 2.5 Beta 2 allows remote attackers to cause a denial of service (daemon crash) via a malformed op_connect_request message that triggers an infinite loop or NULL pointer dereference.

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)

Firebirdsql — Firebird

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-2620",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-07-29T17:30:01.280",
  "references": [
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      "url": "http://tracker.firebirdsql.org/browse/CORE-2563",
      "tags": [
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      "tags": [
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      "source": "cve@mitre.org"
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    {
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      "tags": [
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      "source": "cve@mitre.org"
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    {
      "url": "http://www.securityfocus.com/bid/35842",
      "tags": [
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      "source": "cve@mitre.org"
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    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=514463",
      "tags": [
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    {
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      "tags": [
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      "source": "cve@mitre.org"
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    {
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      "tags": [
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      "source": "cve@mitre.org"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "src/remote/server.cpp in fbserver.exe in Firebird SQL 1.5 before 1.5.6, 2.0 before 2.0.6, 2.1 before 2.1.3, and 2.5 before 2.5 Beta 2 allows remote attackers to cause a denial of service (daemon crash) via a malformed op_connect_request message that triggers an infinite loop or NULL pointer dereference."
    },
    {
      "lang": "es",
      "value": "src/remote/server.cpp en fbserver.exe en Firebird SQL v1.5 anterior a v1.5.6, v2.0 anterior a v2.0.6, v2.1 anterior a v2.1.3, y v2.5 anterior a v2.5 Beta 2, permite a atacantes remotos provocar una denegación de servicio (caída de demonio) a través de un mensaje op_connect_request mal formado que provoca un bucle infinito o una deferencia a puntero NULL."
    }
  ],
  "lastModified": "2026-06-16T23:09:51.347",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}