FKIE_CVE-2013-1821
Vulnerability from fkie_nvd - Published: 2013-04-09 21:55 - Updated: 2026-06-16 23:52
Severity
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ruby-lang | ruby | * | |
| ruby-lang | ruby | 1.9 | |
| ruby-lang | ruby | 1.9.1 | |
| ruby-lang | ruby | 1.9.2 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 1.9.3 | |
| ruby-lang | ruby | 2.0 | |
| ruby-lang | ruby | 2.0.0 | |
| ruby-lang | ruby | 2.0.0 | |
| ruby-lang | ruby | 2.0.0 |
{
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{
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"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
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"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)."
}
],
"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",
"id": "CVE-2013-1821",
"lastModified": "2026-06-16T23:52:11.147",
"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": "2013-04-09T21:55:01.113",
"references": [
{
"source": "secalert@redhat.com",
"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",
"tags": [
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],
"url": "http://secunia.com/advisories/52783"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://secunia.com/advisories/52902"
},
{
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"url": "http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision\u0026revision=39384"
},
{
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"url": "http://www.debian.org/security/2013/dsa-2738"
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"url": "http://www.debian.org/security/2013/dsa-2809"
},
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"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:124"
},
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"url": "http://www.openwall.com/lists/oss-security/2013/03/06/5"
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"url": "http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html"
},
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"url": "http://www.ruby-lang.org/en/news/2013/02/22/rexml-dos-2013-02-22/"
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},
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"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"
},
{
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"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"
},
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"url": "http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html"
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"url": "http://lists.opensuse.org/opensuse-updates/2013-04/msg00036.html"
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{
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"tags": [
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"url": "http://secunia.com/advisories/52783"
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{
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"tags": [
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],
"url": "http://secunia.com/advisories/52902"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"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"
},
{
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"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:124"
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"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"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=914716"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0092"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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