gsd-2018-20843
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Aliases
Aliases
{
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"alias": "CVE-2018-20843",
"description": "In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).",
"id": "GSD-2018-20843",
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"https://www.debian.org/security/2019/dsa-4472",
"https://access.redhat.com/errata/RHSA-2020:4846",
"https://access.redhat.com/errata/RHSA-2020:4484",
"https://access.redhat.com/errata/RHSA-2020:3952",
"https://access.redhat.com/errata/RHSA-2020:2646",
"https://access.redhat.com/errata/RHSA-2020:2644",
"https://ubuntu.com/security/CVE-2018-20843",
"https://advisories.mageia.org/CVE-2018-20843.html",
"https://alas.aws.amazon.com/cve/html/CVE-2018-20843.html",
"https://linux.oracle.com/cve/CVE-2018-20843.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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],
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"modified": "2023-12-13T01:22:29.513122Z",
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"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
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"CWE-611",
"CWE-937"
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"date": "2019-06-26",
"description": "`libexpat` in Expat, XML input including XML names that contain many colons could make the XML parser consume a high amount of RAM and CPU resources while processing, leading to a possible denial-of-service attack.",
"fixed_versions": [
"2.3.0"
],
"identifier": "CVE-2018-20843",
"identifiers": [
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],
"not_impacted": "All versions starting from 2.2.7",
"package_slug": "npm/node-expat",
"pubdate": "2019-06-24",
"solution": "Upgrade to version 2.3.0 or above.",
"title": "Improper Restriction of XML External Entity Reference",
"urls": [
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"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226",
"https://github.com/libexpat/libexpat/issues/186"
],
"uuid": "14cdb1f1-b91a-4484-8943-f7b0a7e110d2"
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"impact": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
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"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
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"obtainAllPrivilege": false,
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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},
"lastModifiedDate": "2022-04-18T17:17Z",
"publishedDate": "2019-06-24T17:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.