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CVE-2016-9589

Estado: ModificadaAlta (7.5)—

Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection.

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)

Redhat — Jboss Wildfly Application Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-9589",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "Red Hat, Inc.",
          "product": "wildfly",
          "versions": [
            {
              "status": "affected",
              "version": "11.0.0.Beta1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-03-12T15:29:00.273",
  "references": [
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      "url": "http://rhn.redhat.com/errata/RHSA-2017-0830.html",
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1404782",
      "tags": [
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    {
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    },
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      "url": "http://rhn.redhat.com/errata/RHSA-2017-0876.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/97060",
      "tags": [
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        "VDB Entry"
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    {
      "url": "https://access.redhat.com/errata/RHSA-2017:0872",
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    {
      "url": "https://access.redhat.com/errata/RHSA-2017:0873",
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1404782",
      "tags": [
        "Issue Tracking"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to \"max-headers\" (default 200) * \"max-header-size\" (default 1MB) per active TCP connection."
    },
    {
      "lang": "es",
      "value": "Undertow en Red Hat wildfly, en versiones anteriores a la 11.0.0.Beta1, es vulnerable a un agotamiento de recursos, lo cual resulta en una denegación de servicio (DoS). Undertow mantiene una caché de las cabeceras HTTP vistas en conexiones persistentes. Se ha descubierto que esta caché puede ser explotada fácilmente para llenar la memoria con elementos no utilizados, hasta \"max-headers\" (200 por defecto) * \"max-header-size\" (1MB por defecto) por conexión TCP activa."
    }
  ],
  "lastModified": "2026-06-17T00:56:17.913",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "AFA3794D-ABF9-435A-9F91-6491F436CAC9",
              "versionEndIncluding": "10.1.0"
            },
            {
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  "sourceIdentifier": "secalert@redhat.com"
}