CVE-2013-1821 (GCVE-0-2013-1821)
Vulnerability from cvelistv5 – Published: 2013-04-09 21:00 – Updated: 2024-08-06 15:13
VLAI
EPSS
VEX
Summary
lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
23 references
Date Public
2013-02-22 00:00
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"references": "[{\"url\": \"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2013-0611.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2013-0612.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2013-1028.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2013-1147.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://secunia.com/advisories/52783\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/52902\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision\u0026revision=39384\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.debian.org/security/2013/dsa-2738\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.debian.org/security/2013/dsa-2809\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2013:124\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2013/03/06/5\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/58141\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2013\u0026m=slackware-security.426862\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-1780-1\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=914716\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092\", \"source\": \"secalert@redhat.com\"}, {\"url\": \"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": 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[\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/52902\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision\u0026revision=39384\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.debian.org/security/2013/dsa-2738\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.debian.org/security/2013/dsa-2809\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.mandriva.com/security/advisories?name=MDVSA-2013:124\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2013/03/06/5\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/58141\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2013\u0026m=slackware-security.426862\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ubuntu.com/usn/USN-1780-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=914716\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2013-1821\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2013-04-09T21:55:01.113\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.\"},{\"lang\":\"es\",\"value\":\"lib/rexml/text.rb en el analizador REXML en Ruby anterior a 1.9.3-p392, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de memoria o ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de nodos de texto manipulados en un documento XML. Aka como ataque XML Entity Expansion (XEE).\"}],\"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-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:*:p385:*:*:*:*:*:*\",\"versionEndIncluding\":\"1.9.3\",\"matchCriteriaId\":\"AA8C0F8E-4C21-4181-84A5-D17E70D19D9A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D9237145-35F8-4E05-B730-77C0F386E5B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C78BB1D8-0505-484D-B824-1AA219F8B247\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5178D04D-1C29-4353-8987-559AA07443EC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D0535DC9-EB0E-4745-80AC-4A020DF26E38\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:p0:*:*:*:*:*:*\",\"matchCriteriaId\":\"94F5AA37-B466-4E2E-B217-5119BADDD87B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:p125:*:*:*:*:*:*\",\"matchCriteriaId\":\"6DF0F0F5-4022-4837-9B40-4B1127732CC9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:p194:*:*:*:*:*:*\",\"matchCriteriaId\":\"B3848B08-85C2-4AAD-AA33-CCEB80EF5B32\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:p286:*:*:*:*:*:*\",\"matchCriteriaId\":\"B7927D40-2A3A-43AD-99F6-CE61882A1FF4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:1.9.3:p383:*:*:*:*:*:*\",\"matchCriteriaId\":\"AA406EC6-6CA5-40A6-A879-AA8940CBEF07\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:2.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"90E0471D-1323-4E67-B66C-DEBF3BBAEEAA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:2.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B03B7561-A854-4EFA-9E4E-CFC4EEAE4EE1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:2.0.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"285A3431-BDFE-40C5-92CD-B18217757C23\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ruby-lang:ruby:2.0.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"D66B32CB-AC49-4A1C-85ED-6389F27CB319\"}]}]}],\"references\":[{\"url\":\"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2013-0611.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2013-0612.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2013-1028.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2013-1147.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://secunia.com/advisories/52783\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://secunia.com/advisories/52902\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision\u0026revision=39384\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.debian.org/security/2013/dsa-2738\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.debian.org/security/2013/dsa-2809\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.mandriva.com/security/advisories?name=MDVSA-2013:124\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2013/03/06/5\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor 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Advisory\"]},{\"url\":\"http://secunia.com/advisories/52902\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision\u0026revision=39384\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.debian.org/security/2013/dsa-2738\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.debian.org/security/2013/dsa-2809\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.mandriva.com/security/advisories?name=MDVSA-2013:124\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2013/03/06/5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/58141\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2013\u0026m=slackware-security.426862\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.ubuntu.com/usn/USN-1780-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=914716\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}],\"evaluatorImpact\":\"Per: http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/\\r\\n\\r\\n\\\"Affected versions\\r\\n\\r\\n All ruby 1.9 versions prior to ruby 1.9.3 patchlevel 392\\r\\n All ruby 2.0 versions prior to ruby 2.0.0 patchlevel 0\\r\\n prior to trunk revision 39384\\\"\\r\\n\"}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-05-18T10:01:06+00:00",
"cve": "CVE-2013-1821",
"id": "CVE-2013-1821",
"initial_release_date": "2013-02-22T00:00:00+00:00",
"product_status:fixed": "448",
"product_status:known_affected": "3",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "ruby: entity expansion DoS vulnerability in REXML",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-1821.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-05T01:29:33Z",
"cve": "CVE-2013-1821",
"id": "CVE-2013-1821",
"initial_release_date": "2023-02-15T05:40:01Z",
"product_status:recommended": "64",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2013-1821",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-1821.json",
"version": "8"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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