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CVE-2016-1634

Estado: ModificadaAlta (8.8)—

Vulnerabilidad de uso después de liberación de memoria en la función StyleResolver::appendCSSStyleSheet en WebKit/Source/core/css/resolver/StyleResolver.cpp en Blink, tal como se utiliza en Google Chrome en versiones anteriores a 49.0.2623.75, permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de un sitio web manipulado que desencadena la invalidación del estilo Cascading Style Sheets (CSS) durante cierta acción de eliminación de subárbol.

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)

Google — Chrome

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-1634",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-03-06T02:59:05.463",
  "references": [
    {
      "url": "http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3507",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/84008",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1035185",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2920-1",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=559292",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://codereview.chromium.org/1556963002",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3507",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/84008",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1035185",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2920-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=559292",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://codereview.chromium.org/1556963002",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "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": "Use-after-free vulnerability in the StyleResolver::appendCSSStyleSheet function in WebKit/Source/core/css/resolver/StyleResolver.cpp in Blink, as used in Google Chrome before 49.0.2623.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted web site that triggers Cascading Style Sheets (CSS) style invalidation during a certain subtree-removal action."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso después de liberación de memoria en la función StyleResolver::appendCSSStyleSheet en WebKit/Source/core/css/resolver/StyleResolver.cpp en Blink, tal como se utiliza en Google Chrome en versiones anteriores a 49.0.2623.75, permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de un sitio web manipulado que desencadena la invalidación del estilo Cascading Style Sheets (CSS) durante cierta acción de eliminación de subárbol."
    }
  ],
  "lastModified": "2026-06-17T00:42:18.350",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "99CABF0F-D201-46AE-83DC-09257264BF7D",
              "versionEndIncluding": "48.0.2564.116"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/416.html\">CWE-416: Use After Free</a>",
  "sourceIdentifier": "chrome-cve-admin@google.com"
}