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CVE-2016-2377

Status: ModifiedHigh (8.1)—

A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out-of-bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2016-2377",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "integrityImpact": "HIGH",
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          "attackComplexity": "HIGH",
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  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Pidgin",
          "product": "Pidgin",
          "versions": [
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              "status": "affected",
              "version": "2.10.11"
            }
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  ],
  "published": "2017-01-06T21:59:01.007",
  "references": [
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      "url": "http://www.debian.org/security/2016/dsa-3620",
      "tags": [
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      "tags": [
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      "source": "cret@cert.org"
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      "tags": [
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      "source": "cret@cert.org"
    },
    {
      "url": "http://www.talosintelligence.com/reports/TALOS-2016-0119/",
      "tags": [
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      "source": "cret@cert.org"
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      "tags": [
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      "source": "cret@cert.org"
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    {
      "url": "https://security.gentoo.org/glsa/201701-38",
      "source": "cret@cert.org"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-119"
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      "value": "A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out-of-bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desbordamiento de búfer en el manejo del protocolo MXIT en Pidgin. Datos MXIT especialmente manipulados enviados por el servidor podrían resultar potencialmente en una escritura fuera de límites de un byte. Un servidor malicioso puede enviar un contenido negativo de longitud en respuesta a una petición HTTP desencadenando la vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T00:43:55.740",
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  "sourceIdentifier": "cret@cert.org"
}