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CVE-2006-6397

Status: ModifiedMedium (4.4)—

Integer overflow in banner/banner.c in FreeBSD, NetBSD, and OpenBSD might allow local users to modify memory via a long banner. NOTE: CVE and multiple third parties dispute this issue. Since banner is not setuid, an exploit would not cross privilege boundaries in normal operations. This issue is not a 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)

Freebsd — FreebsdNetbsd — NetbsdOpenbsd — Openbsd

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2006-6397",
  "cveTags": [
    {
      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.4,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-12-08T01:28:00.000",
  "references": [
    {
      "url": "http://www.securityfocus.com/archive/1/452322/100/200/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452330/100/200/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452374/100/200/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452470/100/200/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452322/100/200/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452330/100/200/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452374/100/200/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/452470/100/200/threaded",
      "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": "Integer overflow in banner/banner.c in FreeBSD, NetBSD, and OpenBSD might allow local users to modify memory via a long banner.  NOTE: CVE and multiple third parties dispute this issue. Since banner is not setuid, an exploit would not cross privilege boundaries in normal operations. This issue is not a vulnerability"
    },
    {
      "lang": "es",
      "value": "** IMPUGNADO ** Desbordamiento de entero en banner/banner.c de FreeBSD, NetBSD, y OpenBSD podría permitir a usuarios locales modificar la memoria mediante un banner largo.\r\nNOTA: CVE y múltiples terceras partes impugnan esta vulnerabilidad. Dado que banner no es un stuid, un exploit no podría cruzar límites de privilegios en operaciones normales. Esta cuestión no es una vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-16T22:33:03.457",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:6.2:stable:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "32FCB0B3-8FBE-49FA-B17E-0D5462C9E5B4"
            },
            {
              "criteria": "cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "36419DD6-0DB4-4BB6-A35F-D8FDB89402F1"
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CA3CDD3C-DBA6-4BA2-967D-AD746822F3CF"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}