FKIE_CVE-2011-1156

Vulnerability from fkie_nvd - Published: 2011-04-11 18:55 - Updated: 2026-06-16 23:28
Severity
Summary
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.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html
secalert@redhat.comhttp://openwall.com/lists/oss-security/2011/03/14/18Patch
secalert@redhat.comhttp://openwall.com/lists/oss-security/2011/03/15/11Exploit, Patch
secalert@redhat.comhttp://secunia.com/advisories/43730Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/44074Vendor Advisory
secalert@redhat.comhttp://support.novell.com/security/cve/CVE-2011-1156.html
secalert@redhat.comhttp://www.mandriva.com/security/advisories?name=MDVSA-2011:082
secalert@redhat.comhttp://www.securityfocus.com/bid/46867
secalert@redhat.comhttps://bugzilla.novell.com/show_bug.cgi?id=680074Exploit, Patch
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=684877
secalert@redhat.comhttps://code.google.com/p/feedparser/issues/detail?id=91Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2011/03/14/18Patch
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2011/03/15/11Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/43730Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/44074Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://support.novell.com/security/cve/CVE-2011-1156.html
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2011:082
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/46867
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.novell.com/show_bug.cgi?id=680074Exploit, Patch
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=684877
af854a3a-2127-422b-91ae-364da2661108https://code.google.com/p/feedparser/issues/detail?id=91Exploit, Patch
Impacted products
Vendor Product Version
mark_pilgrim feedparser *
mark_pilgrim feedparser 3.0
mark_pilgrim feedparser 3.0.1
mark_pilgrim feedparser 3.1
mark_pilgrim feedparser 3.2
mark_pilgrim feedparser 3.3
mark_pilgrim feedparser 4.0
mark_pilgrim feedparser 4.0.1
mark_pilgrim feedparser 4.0.2
mark_pilgrim feedparser 4.1
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:mark_pilgrim:feedparser:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E9B56337-42DB-4069-A4AB-8ACF2BAEC2AF",
              "versionEndIncluding": "5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "F77200AB-F881-4FD6-9CCB-D5F60224A7DF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "26821F56-74B7-40F2-831E-51F31E09820E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "53E534A3-B856-4D06-9DF7-4C1693C960A7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "46E2924E-5825-4ABE-B7CA-822298BBB55C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:3.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "F51660B8-24D3-40EF-AAC9-AB57B12F8B5A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "598605D2-7141-4624-BE81-9BDA97DD81E2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:4.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "62F11924-9771-4EA0-A1A0-914327ACD0C5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:4.0.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "834A8E71-A549-4899-A9F3-4ED120C9E713",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mark_pilgrim:feedparser:4.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "7D29647A-AD45-47B2-BFCC-089B075163D3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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 (Tambi\u00e9n conocido como feedparser o python-feedparser) antes de v5.0.1 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (caida de la aplicaci\u00f3n) a trav\u00e9s de una declaraci\u00f3n DOCTYPE con formato incorrecto.\r\n"
    }
  ],
  "id": "CVE-2011-1156",
  "lastModified": "2026-06-16T23:28:50.300",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-04-11T18:55:03.477",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch"
      ],
      "url": "http://openwall.com/lists/oss-security/2011/03/14/18"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "http://openwall.com/lists/oss-security/2011/03/15/11"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/43730"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/44074"
    },
    {
      "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",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=680074"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=684877"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://code.google.com/p/feedparser/issues/detail?id=91"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-updates/2011-04/msg00026.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "http://openwall.com/lists/oss-security/2011/03/14/18"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "http://openwall.com/lists/oss-security/2011/03/15/11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/43730"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/44074"
    },
    {
      "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",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=680074"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=684877"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Patch"
      ],
      "url": "https://code.google.com/p/feedparser/issues/detail?id=91"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.