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CVE-2006-3202

Status: ModifiedMedium (4.9)—

The ip6_savecontrol function in NetBSD 2.0 through 3.0, under certain configurations, does not check to see if IPv4-mapped sockets are being used before processing IPv6 socket options, which allows local users to cause a denial of service (crash) by creating an IPv4-mapped IPv6 socket with the SO_TIMESTAMP socket option set, then sending an IPv4 packet through the socket.

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 (1)

Netbsd — Netbsd

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2006-3202",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-06-23T20:06:00.000",
  "references": [
    {
      "url": "http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-016.txt.asc",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securitytracker.com/id?1016250",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27139",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-016.txt.asc",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securitytracker.com/id?1016250",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/27139",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ip6_savecontrol function in NetBSD 2.0 through 3.0, under certain configurations, does not check to see if IPv4-mapped sockets are being used before processing IPv6 socket options, which allows local users to cause a denial of service (crash) by creating an IPv4-mapped IPv6 socket with the SO_TIMESTAMP socket option set, then sending an IPv4 packet through the socket."
    },
    {
      "lang": "es",
      "value": "La función ip6_savecontrol en NetBSD v2.0 hasta v3.0, bajo ciertas configuraciones, no permite comprobar si el sockets IPv4-mapped ha sido usado antes del proceso de opciones del socket IPv6, lo que permite a atacantes locales causar una denegación de servicio (caída) por creación de un socket IPv4-mapped IPv6 con opción SO_TIMESTAMP activada, para luego enviar un paquete IPv4 a través del socket."
    }
  ],
  "lastModified": "2026-06-16T22:26:36.977",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A3C3F588-98DA-4F6F-A083-2B9EE534C561"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:2.0.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D18C95A3-15E3-41B8-AC28-ACEA57021E24"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:2.0.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6CFC6B75-9057-4E58-A4D4-8AEC12AE62E4"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28BD9F91-2384-4557-9648-25FC00D04677"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F9CABFAA-594C-45D7-A0C7-795872A0C68A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}