CVE-2011-1753 (GCVE-0-2011-1753)

Vulnerability from cvelistv5 – Published: 2011-06-21 01:00 – Updated: 2024-08-06 22:37
VLAI
Summary
expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://www.debian.org/security/2011/dsa-2248 vendor-advisoryx_refsource_DEBIAN
http://www.process-one.net/en/ejabberd/release_no… x_refsource_CONFIRM
http://secunia.com/advisories/44765 third-party-advisoryx_refsource_SECUNIA
https://git.process-one.net/ejabberd/mainline/com… x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://www.ejabberd.im/ejabberd-2.1.7 x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=700454 x_refsource_CONFIRM
http://secunia.com/advisories/44807 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/48072 vdb-entryx_refsource_BID
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://secunia.com/advisories/45120 third-party-advisoryx_refsource_SECUNIA
Date Public
2011-05-31 00:00
Show details on NVD website
To clipboard 

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      "published": "2011-06-21T02:52:42.763",
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      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-399\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2011-1753\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2011-06-21T02:52:42.763\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.\"},{\"lang\":\"es\",\"value\":\"expat_erl.c en ejabberd v2.1.7 y v3.x antes de v3.0.0-alpha-3, y exmpp antes de v0.9.7, no detecta correctamente la recursividad durante la expansi\u00f3n de la entidad, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio ( la memoria  y el consumo de CPU ) a trav\u00e9s de un documento XML manipulado que contiene un gran n\u00famero de referencias a entidades anidadas, un problema similar a CVE-2003-1564.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-399\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.1.6\",\"matchCriteriaId\":\"CD5B8BF6-DAEA-4557-A6D8-8F7BCB893FEB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:0.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"666E7908-0690-4DFE-8141-07F2D15E5404\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:0.9.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDFFF6D6-C749-4D07-85A5-E6D343FC4243\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:0.9.8:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F6EE1B8F-0FDB-4E00-A15A-C107DCDB93BB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"18E7EDE8-298E-444E-A624-0202705C516C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C81B5565-94A8-4F03-A846-3C3F842B909D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DC959279-43D7-4CB0-A845-25D4DE92E06A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"46528149-3D63-4E68-9209-DAFA55B3A855\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B6D5B249-4D6D-4B15-9348-2C7C0A0B82E6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F2425925-5ACB-4BE4-9C98-F028647AAF2F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB7AF867-ED0A-428A-A53D-E20B733EBAF0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:1.1.14:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4409695C-2A6C-4D27-9DB9-D0BD653487E4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F78A11B2-2110-4372-8579-DDA24691C18A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.0:beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"906C248B-FFD7-4EF0-A181-BACE05B324AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"36B7CC0A-CD37-4E31-9A99-41E59EB46E36\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.1_2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F401CBE2-80FC-4D64-A21B-5966330E9C08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5B0CBC37-5A98-4067-93FF-6B637F9C7EDC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DE7C5587-2FB0-4D05-ABB0-0C566964971D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"00AB30D9-688A-4F14-BEAF-7B3FBAF719C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.0.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AC9F432-B650-4AAC-86B5-5C5A037057E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"25B4CDF3-43DC-4F5B-B8BC-76E08C5B8C67\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"50123C8E-2164-4239-A2DB-8CF60459EBF1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"13040FDA-1672-480D-9153-41B3A51CCB22\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"93F73ED8-575E-41F3-AC36-198B627F30AF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"96BF9CB2-C033-42D9-B976-E1A7797FA417\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:2.1.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B5AACC08-E1FD-4282-B051-4539D69CAF57\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:3.0.0:alpha1:*:*:*:*:*:*\",\"matchCriteriaId\":\"60A26956-C0CE-4265-9C0E-DE1ED1FDE22B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:ejabberd:3.0.0:alpha2:*:*:*:*:*:*\",\"matchCriteriaId\":\"7262BB2A-C7F3-4FAA-A66E-2DC1ADCD5E86\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"0.9.6\",\"matchCriteriaId\":\"0F0CC56A-3014-4B8E-AA51-21E2969005C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:0.9.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5AE0A58-1128-43E4-8DAD-A0775A6BF74C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:0.9.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0BE09DF7-A37F-45A0-99C7-CCC7B259FB55\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:0.9.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"82714670-785A-4FE2-A452-12784E0CF0F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:0.9.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F2E43DCD-6969-4D43-B79E-5BB87975D0D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:process-one:exmpp:0.9.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D2583566-65AE-459D-8B88-85C8B4071A3F\"}]}]}],\"references\":[{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062099.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062145.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://secunia.com/advisories/44765\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor 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Advisory\"]},{\"url\":\"http://secunia.com/advisories/44807\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor 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    "redhat_vex": {
      "current_release_date": "2025-11-21T12:57:09+00:00",
      "cve": "CVE-2011-1753",
      "id": "CVE-2011-1753",
      "initial_release_date": "2011-05-31T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ejabberd: DoS via the XML \"billion laughs attack\"",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-1753.json",
      "version": "3"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.