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CVE-2017-16671

Estado: ModificadaAlta (8.8)—

A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.

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)

Digium — AsteriskDigium — Certified Asterisk

CWE

Referencias

JSON original (NVD)

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          "value": "CWE-119"
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      "value": "A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento de búfer se descubrió en Asterisk Open Source en versiones 13 anteriores a la 13.18.1, versiones 14 anteriores a la 14.7.1 y versiones 15 antes de la 15.1.1 y en Certified Asterisk 13.13 en versiones anteriores a la 13.13-cert7. No se realizan chequeos de tamaño cuando se configura el campo user para Party B en un CDR. Por ello, es posible que alguien utilice una cadena arbitraria con una longitud larga y escriba más allá del final del búfer de almacenamiento del campo user. NOTA: esta vulnerabilidad es diferente de CVE-2017-7617, que solo trataba del búfer Party A."
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  "lastModified": "2026-06-17T01:09:39.153",
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