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CVE-2011-1156

Estado: ModificadaMedia (5)—

feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration.

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).

Tecnologías afectadas (1)

Mark Pilgrim — Feedparser

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-1156",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-04-11T18:55:03.477",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2011/03/14/18",
      "tags": [
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2011/03/15/11",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/43730",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/44074",
      "tags": [
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      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://support.novell.com/security/cve/CVE-2011-1156.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:082",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/46867",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=680074",
      "tags": [
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    {
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://code.google.com/p/feedparser/issues/detail?id=91",
      "tags": [
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        "Patch"
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      "source": "secalert@redhat.com"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/43730",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/44074",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.novell.com/security/cve/CVE-2011-1156.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:082",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/46867",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=680074",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=684877",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.google.com/p/feedparser/issues/detail?id=91",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration."
    },
    {
      "lang": "es",
      "value": "feedparser.py en Universal Feed Parser (También conocido como feedparser o python-feedparser) antes de v5.0.1 permite a atacantes remotos provocar una denegación de servicio (caida de la aplicación) a través de una declaración DOCTYPE con formato incorrecto.\r\n"
    }
  ],
  "lastModified": "2026-06-16T23:28:50.300",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:*:*:*:*:*:*:*:*",
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              "versionEndIncluding": "5.0"
            },
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            },
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              "vulnerable": true,
              "matchCriteriaId": "26821F56-74B7-40F2-831E-51F31E09820E"
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "53E534A3-B856-4D06-9DF7-4C1693C960A7"
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.2:*:*:*:*:*:*:*",
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            },
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            },
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            },
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            },
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              "vulnerable": true,
              "matchCriteriaId": "7D29647A-AD45-47B2-BFCC-089B075163D3"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "secalert@redhat.com"
}