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CVE-2014-9656

Estado: ModificadaAlta (7.5)—

La función tt_sbit_decoder_load_image en sfnt/ttsbit.c en FreeType anterior a 2.5.4 no comprueba correctamente si hay un desbordamiento de enteros, lo que permite a atacantes remotos causar una denegación de servicio (lectura fuera de rango) o posiblemente tener otro impacto no especificado a través de una fuente OpenType manipulada.

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 (5)

Canonical — Ubuntu LinuxDebian — Debian LinuxFedoraproject — FedoraFreetype — FreetypeOpensuse — Opensuse

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2014-9656",
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          "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,
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        "obtainOtherPrivilege": false,
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  "published": "2015-02-08T11:59:15.163",
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      "value": "The tt_sbit_decoder_load_image function in sfnt/ttsbit.c in FreeType before 2.5.4 does not properly check for an integer overflow, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted OpenType font."
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