gsd-2021-43826
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-43826",
"description": "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.",
"id": "GSD-2021-43826",
"references": [
"https://www.suse.com/security/cve/CVE-2021-43826.html",
"https://access.redhat.com/errata/RHSA-2022:1275",
"https://access.redhat.com/errata/RHSA-2022:1276"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-43826"
],
"details": "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.",
"id": "GSD-2021-43826",
"modified": "2023-12-13T01:23:26.237041Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-43826",
"STATE": "PUBLIC",
"TITLE": "Crash when tunneling TCP over HTTP in Envoy"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "envoy",
"version": {
"version_data": [
{
"version_value": "\u003c 1.18.6"
},
{
"version_value": "\u003e= 1.19.0, \u003c 1.19.3"
},
{
"version_value": "\u003e= 1.20.0, \u003c 1.20.2"
},
{
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}
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}
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}
]
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}
]
},
"impact": {
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"attackComplexity": "LOW",
"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"
}
},
"problemtype": {
"problemtype_data": [
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"description": [
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"lang": "eng",
"value": "CWE-416: Use After Free"
}
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},
{
"name": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145",
"refsource": "MISC",
"url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
}
]
},
"source": {
"advisory": "GHSA-cmx3-fvgf-83mf",
"discovery": "UNKNOWN"
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.18.6",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.19.3",
"versionStartIncluding": "1.19.0",
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},
{
"cpe23Uri": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.20.2",
"versionStartIncluding": "1.20.0",
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},
{
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"cpe_name": [],
"versionEndExcluding": "1.21.1",
"versionStartIncluding": "1.21.0",
"vulnerable": true
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"operator": "OR"
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"cve": {
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"ID": "CVE-2021-43826"
},
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"description": {
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{
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"value": "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade."
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},
"problemtype": {
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"refsource": "CONFIRM",
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],
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"
},
{
"name": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145",
"refsource": "MISC",
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"Patch",
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],
"url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"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"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2022-03-02T15:23Z",
"publishedDate": "2022-02-22T23:15Z"
}
}
}
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- 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.