FKIE_CVE-2012-4436

Vulnerability from fkie_nvd - Published: 2012-10-22 23:55 - Updated: 2026-06-16 23:45
Severity
Summary
Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.
References
secalert@redhat.comhttp://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.htmlVendor Advisory
secalert@redhat.comhttp://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/09/19/2
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2012/09/20/4
af854a3a-2127-422b-91ae-364da2661108http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/09/19/2
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/09/20/4
Impacted products
Vendor Product Version
cipherdyne fwknop *
cipherdyne fwknop 2.0
cipherdyne fwknop 2.0.1
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cipherdyne:fwknop:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "86145D7E-F2E9-475D-8403-AF11FE48A1BA",
              "versionEndIncluding": "2.0.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cipherdyne:fwknop:2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "CED7A956-59FA-4113-B297-B7726A0F0FB4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cipherdyne:fwknop:2.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "8BCB6F50-1B75-4ABE-B9C1-83D26CCB48E1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de b\u00fafer en la funci\u00f3n run_last_args en ??client/fwknop.c en fwknop antes de v2.0.3, cuando se est\u00e1 procesando --last, podr\u00eda permitir a usuarios locales provocar una denegaci\u00f3n de servicio (ca\u00edda de cliente) y posiblemente ejecutar c\u00f3digo arbitrario a trav\u00e9s de varios argumentos .fwknop.run."
    }
  ],
  "id": "CVE-2012-4436",
  "lastModified": "2026-06-16T23:45:05.813",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-10-22T23:55:07.133",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"
    },
    {
      "source": "secalert@redhat.com",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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