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CVE-2012-1147

Status: ModifiedMedium (4.3)—

readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files.

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 (2)

Apple — MAC OS XLibexpat Project — Libexpat

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2012-1147",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-07-03T19:55:02.663",
  "references": [
    {
      "url": "http://expat.cvs.sourceforge.net/viewvc/expat/expat/xmlwf/readfilemap.c?r1=1.14&r2=1.15",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
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      "source": "secalert@redhat.com"
    },
    {
      "url": "http://sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://trac.wxwidgets.org/ticket/11194",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://trac.wxwidgets.org/ticket/11432",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/52379",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securitytracker.com/id/1034344",
      "source": "secalert@redhat.com"
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      "url": "https://support.apple.com/HT205637",
      "tags": [
        "Vendor Advisory"
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      "source": "secalert@redhat.com"
    },
    {
      "url": "http://expat.cvs.sourceforge.net/viewvc/expat/expat/xmlwf/readfilemap.c?r1=1.14&r2=1.15",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "http://sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://trac.wxwidgets.org/ticket/11194",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://trac.wxwidgets.org/ticket/11432",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/52379",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1034344",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/HT205637",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files."
    },
    {
      "lang": "es",
      "value": "readfilemap.c en expat antes de v2.1.0 permite causar una denegación de servicio (por consumo de descriptores de fichero) a atacantes dependientes de contexto a través de un gran número de archivos XML hechos a mano."
    }
  ],
  "lastModified": "2026-06-16T23:39:07.777",
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}