CVE-2016-1526

Estado: ModificadaAlta (8.1)—
The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.
CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Puntuación base: 8.1
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.25%
Percentil entre todas las CVEs puntuadas: 82
Fecha de la puntuación: 5/10/2026
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 (5)

Debian — Debian Linux Fedoraproject — Fedora Mozilla — Firefox Mozilla — Thunderbird SIL — Graphite2
CWE

CWE-119, CWE-200
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-1526",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "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": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-02-13T02:59:12.027",
  "references": [
    {
      "url": "http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177520.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184623.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00052.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00058.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00088.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0594.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0695.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3479",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2016/mfsa2016-14.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/82991",
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2902-1",
      "source": "cret@cert.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-35",
      "source": "cret@cert.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-63",
      "source": "cret@cert.org"
    },
    {
      "url": "http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177520.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184623.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00052.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00058.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00088.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0594.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0695.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3479",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2016/mfsa2016-14.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/82991",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2902-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-35",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201701-63",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font."
    },
    {
      "lang": "es",
      "value": "La función TtfUtil:LocaLookup en TtfUtil.cpp en Libgraphite en Graphite 2 1.2.4, como se utiliza en Mozilla Firefox en versiones anteriores a 43.0 y Firefox ESR 38.x en versiones anteriores a 38.6.1, valida incorrectamente un valor de tamaño, lo que permite a atacantes remotos obtener información sensible o causar una denegación de servicio (lectura fuera de rango y caída de aplicación) a través de una fuente inteligente Graphite."
    }
  ],
  "lastModified": "2026-06-17T00:42:07.517",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "35BF0AFB-26BA-4BEA-B6B8-11CF88E951DE"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1F007CC6-9391-4E1C-A747-F3DE5E572FA5"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "45E9641F-430C-4B3A-BD63-EC13DBD3D1E4"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5AADD23B-A8AF-4679-990D-C29A1D6EB5CD"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1343A1FD-98CF-4A6C-A697-1253E538FD5C"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6D098567-B55E-4EAC-8FAA-31FAFDD4058F"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BE0389BC-D295-4957-8AE7-EDAC770F596D"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E75E69A5-AC94-4F35-9EFB-1BFF8B78210D"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2765E663-C9CF-476A-B7A8-6F02D0E2D72D"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "62B4E871-0ACB-4EC5-8392-EAD0DF25E64B"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.5.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "435D6EF5-C879-4121-9D47-EF2236E53409"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.5.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5F99233D-55EE-474D-9D8A-872D5FD9F3DE"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:38.6.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5963D11-D2F4-40A7-81CE-E034C91FCCBD"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F9835F35-2BFD-40D3-976E-953FB7F21330",
              "versionEndIncluding": "38.5.1"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sil:graphite2:1.2.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C989A1ED-6F9A-4868-9B8F-7770780CC055"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "253C303A-E577-4488-93E6-68A8DD942C38"
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E79AB8DD-C907-4038-A931-1A5A4CFB6A5B"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}