gsd-2020-27782
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-27782",
"description": "A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.",
"id": "GSD-2020-27782",
"references": [
"https://access.redhat.com/errata/RHSA-2021:5134",
"https://access.redhat.com/errata/RHSA-2021:3425",
"https://access.redhat.com/errata/RHSA-2021:3207",
"https://access.redhat.com/errata/RHSA-2021:3205",
"https://access.redhat.com/errata/RHSA-2021:0327",
"https://access.redhat.com/errata/RHSA-2021:0295",
"https://access.redhat.com/errata/RHSA-2021:0250",
"https://access.redhat.com/errata/RHSA-2021:0248",
"https://access.redhat.com/errata/RHSA-2021:0247",
"https://access.redhat.com/errata/RHSA-2021:0246"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2020-27782",
"modified": "2023-12-13T01:22:10.822308Z",
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}
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"gitlab.com": {
"advisories": [
{
"affected_range": "[2.0.33],[2.1.5],[2.2.3]",
"affected_versions": "Version 2.0.33, version 2.1.5, version 2.2.3",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
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"date": "2021-02-27",
"description": "A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
"fixed_versions": [
"2.0.34.Final",
"2.1.6.Final",
"2.2.4.Final"
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"identifier": "CVE-2020-27782",
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"package_slug": "maven/io.undertow/undertow-core",
"pubdate": "2021-02-23",
"solution": "Upgrade to versions 2.0.34.Final, 2.1.6.Final, 2.2.4.Final or above.",
"title": "Uncontrolled Resource Consumption",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-27782",
"https://bugzilla.redhat.com/show_bug.cgi?id=1901304"
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"uuid": "da2d50db-71ef-4179-a817-21692049b256"
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"impact": {
"baseMetricV2": {
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"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"exploitabilityScore": 10.0,
"impactScore": 6.9,
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"obtainOtherPrivilege": false,
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"severity": "HIGH",
"userInteractionRequired": 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",
"version": "3.1"
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"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2021-02-27T03:34Z",
"publishedDate": "2021-02-23T19:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- 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.