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CVE-2016-7942

Estado: ModificadaCrítica (9.8)—

The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.

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)

Fedoraproject — FedoraX.org — Libx11

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-7942",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/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@opentext.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-12-13T20:59:05.957",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/10/04/2",
      "source": "security@opentext.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2016/10/04/4",
      "source": "security@opentext.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/93363",
      "source": "security@opentext.com"
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    {
      "url": "http://www.securitytracker.com/id/1036945",
      "source": "security@opentext.com"
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      "url": "https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8ea762f94f4c942d898fdeb590a1630c83235c17",
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    },
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    {
      "url": "https://lists.x.org/archives/xorg-announce/2016-October/002720.html",
      "source": "security@opentext.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201704-03",
      "source": "security@opentext.com"
    },
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      "url": "https://usn.ubuntu.com/3758-1/",
      "source": "security@opentext.com"
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      "url": "https://usn.ubuntu.com/3758-2/",
      "source": "security@opentext.com"
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    {
      "url": "http://www.securitytracker.com/id/1036945",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8ea762f94f4c942d898fdeb590a1630c83235c17",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.x.org/archives/xorg-announce/2016-October/002720.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201704-03",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/3758-1/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/3758-2/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations."
    },
    {
      "lang": "es",
      "value": "La función XGetImage en X.org libX11 en versiones anteriores a 1.6.4 podría permitir a servidores remotos X obtener privilegios a través de vectores que involucran tipo de imagen y geometría, que desencadena operaciones de lectura fuera de límites."
    }
  ],
  "lastModified": "2026-06-17T00:53:47.773",
  "configurations": [
    {
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        {
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          "operator": "OR"
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  "sourceIdentifier": "security@opentext.com"
}