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CVE-2006-6811

Estado: ModificadaMedia (6.5)—💥 Exploit

KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference. NOTE: this issue was originally reported as a buffer overflow.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (2)

Canonical — Ubuntu LinuxKDE — Ksirc

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2006-6811",
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      "description": [
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          "lang": "en",
          "value": "CWE-617"
        }
      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference.  NOTE: this issue was originally reported as a buffer overflow."
    },
    {
      "lang": "es",
      "value": "KsIRC 1.3.12 permite a atacantes remotos provocar una denegación de servicio (caída) mediante una cadena PRIVMSG larga cuando se conecta a un servidor retransmisor de Chat de Internet(IRC), lo que provoca que falle una aserción y se produzca una referencia a puntero NULL.\r\nNOTA: esta vulnerabilidad se documentó originalmente como un desbordamiento de búfer   ."
    }
  ],
  "lastModified": "2026-06-16T22:33:51.187",
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    {
      "comment": "We do not consider a crash of a client application such as KsIRC to be a security issue.",
      "lastModified": "2007-01-18T00:00:00",
      "organization": "Red Hat"
    }
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