fkie_cve-2014-3660
Vulnerability from fkie_nvd
Published
2014-11-04 16:55
Modified
2024-11-21 02:08
Severity ?
Summary
parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.
References
Impacted products
{
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{
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{
"lang": "en",
"value": "parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the \"billion laughs\" attack."
},
{
"lang": "es",
"value": "parser.c en libxml2 anterior a 2.9.2 no previene debidamente la expansi\u00f3n de entidades incluso cuando la substituci\u00f3n de entidades haya sido deshabilitada, lo que permite a atacantes dependientes de contexto causar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de un documento XML manipualdo que contiene un n\u00famero grande de referencias de entidades anidadas, una variante del ataque del \u0027bill\u00f3n de risas\u0027."
}
],
"evaluatorComment": "\u003ca href=\"http://cwe.mitre.org/data/definitions/611.html\" target=\"_blank\"\u003eCWE-611: Improper Restriction of XML External Entity Reference (\u0027XXE\u0027)\u003c/a\u003e",
"id": "CVE-2014-3660",
"lastModified": "2024-11-21T02:08:35.850",
"metrics": {
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{
"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,
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"source": "nvd@nist.gov",
"type": "Primary",
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}
]
},
"published": "2014-11-04T16:55:06.043",
"references": [
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},
{
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{
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{
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{
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{
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{
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{
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{
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]
}
Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.