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CVE-2016-2376

Status: ModifiedHigh (8.1)—

A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent from the server could potentially result in arbitrary code execution. A malicious server or an attacker who intercepts the network traffic can send an invalid size for a packet which will trigger a buffer overflow.

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-2016-2376",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
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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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    "cvssMetricV30": [
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        "type": "Primary",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
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  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Pidgin",
          "product": "Pidgin",
          "versions": [
            {
              "status": "affected",
              "version": "2.10.11"
            }
          ]
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      ]
    }
  ],
  "published": "2017-01-06T21:59:00.977",
  "references": [
    {
      "url": "http://www.debian.org/security/2016/dsa-3620",
      "tags": [
        "Third Party Advisory"
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    },
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      "url": "http://www.pidgin.im/news/security/?id=92",
      "tags": [
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      "source": "cret@cert.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/91335",
      "tags": [
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        "VDB Entry"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.talosintelligence.com/reports/TALOS-2016-0118/",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
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      "source": "cret@cert.org"
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    {
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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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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "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 from the server could potentially result in arbitrary code execution. A malicious server or an attacker who intercepts the network traffic can send an invalid size for a packet which will trigger a buffer overflow."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desbordamiento de búfer en el manejo del protocolo MXIT en Pidgin. Datos MXIT especialmente manipulados enviados desde el servidor podrían resultar potencialmente en ejecución de código arbitrario. Un servidor malicioso o un atacante que intercepte el tráfico red puede enviar un tamaño inválido para un paquete que desencadenará un desbordamiento de búfer."
    }
  ],
  "lastModified": "2026-06-17T00:43:55.617",
  "configurations": [
    {
      "nodes": [
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  ],
  "sourceIdentifier": "cret@cert.org"
}