msrc_cve-2021-43565
Vulnerability from csaf_microsoft
Published
2022-09-02 00:00
Modified
2024-12-03 00:00
Summary
The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server.
Notes
Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
{
"document": {
"category": "csaf_vex",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
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"lang": "en-US",
"notes": [
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"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2021-43565 The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2021-43565.json"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server.",
"tracking": {
"current_release_date": "2024-12-03T00:00:00.000Z",
"generator": {
"date": "2025-10-19T23:55:36.232Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2021-43565",
"initial_release_date": "2022-09-02T00:00:00.000Z",
"revision_history": [
{
"date": "2024-07-23T00:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2024-08-05T00:00:00.000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Information published."
},
{
"date": "2024-08-18T00:00:00.000Z",
"legacy_version": "1.2",
"number": "3",
"summary": "Information published."
},
{
"date": "2024-09-11T00:00:00.000Z",
"legacy_version": "1.3",
"number": "4",
"summary": "Information published."
},
{
"date": "2024-12-03T00:00:00.000Z",
"legacy_version": "1.4",
"number": "5",
"summary": "Added cf-cli to CBL-Mariner 2.0\nAdded moby-buildx to CBL-Mariner 2.0\nAdded libcontainers-common to CBL-Mariner 2.0\nAdded gh to CBL-Mariner 2.0\nAdded cri-o to CBL-Mariner 2.0"
}
],
"status": "final",
"version": "5"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "2.0",
"product": {
"name": "CBL Mariner 2.0",
"product_id": "17086"
}
}
],
"category": "product_name",
"name": "Azure Linux"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccbl2 gh 2.13.0-24",
"product": {
"name": "\u003ccbl2 gh 2.13.0-24",
"product_id": "2"
}
},
{
"category": "product_version",
"name": "cbl2 gh 2.13.0-24",
"product": {
"name": "cbl2 gh 2.13.0-24",
"product_id": "19967"
}
}
],
"category": "product_name",
"name": "gh"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccbl2 cri-o 1.22.3-14",
"product": {
"name": "\u003ccbl2 cri-o 1.22.3-14",
"product_id": "5"
}
},
{
"category": "product_version",
"name": "cbl2 cri-o 1.22.3-14",
"product": {
"name": "cbl2 cri-o 1.22.3-14",
"product_id": "19777"
}
}
],
"category": "product_name",
"name": "cri-o"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccbl2 moby-buildx 0.7.1-24",
"product": {
"name": "\u003ccbl2 moby-buildx 0.7.1-24",
"product_id": "4"
}
},
{
"category": "product_version",
"name": "cbl2 moby-buildx 0.7.1-24",
"product": {
"name": "cbl2 moby-buildx 0.7.1-24",
"product_id": "19784"
}
}
],
"category": "product_name",
"name": "moby-buildx"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccbl2 cf-cli 8.4.0-24",
"product": {
"name": "\u003ccbl2 cf-cli 8.4.0-24",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "cbl2 cf-cli 8.4.0-24",
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"product_id": "19977"
}
}
],
"category": "product_name",
"name": "cf-cli"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003ccbl2 libcontainers-common 20210626-7",
"product": {
"name": "\u003ccbl2 libcontainers-common 20210626-7",
"product_id": "3"
}
},
{
"category": "product_version",
"name": "cbl2 libcontainers-common 20210626-7",
"product": {
"name": "cbl2 libcontainers-common 20210626-7",
"product_id": "19792"
}
}
],
"category": "product_name",
"name": "libcontainers-common"
}
],
"category": "vendor",
"name": "Microsoft"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "\u003ccbl2 gh 2.13.0-24 as a component of CBL Mariner 2.0",
"product_id": "17086-2"
},
"product_reference": "2",
"relates_to_product_reference": "17086"
},
{
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{
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"product_id": "17086-5"
},
"product_reference": "5",
"relates_to_product_reference": "17086"
},
{
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},
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},
{
"category": "default_component_of",
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},
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{
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{
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{
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},
{
"category": "default_component_of",
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"product_id": "17086-3"
},
"product_reference": "3",
"relates_to_product_reference": "17086"
},
{
"category": "default_component_of",
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"name": "cbl2 libcontainers-common 20210626-7 as a component of CBL Mariner 2.0",
"product_id": "19792-17086"
},
"product_reference": "19792",
"relates_to_product_reference": "17086"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-43565",
"notes": [
{
"category": "general",
"text": "mitre",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"19967-17086",
"19777-17086",
"19784-17086",
"19977-17086",
"19792-17086"
],
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"17086-5",
"17086-4",
"17086-1",
"17086-3"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2021-43565 The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server. - VEX",
"url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2021-43565.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2024-07-23T00:00:00.000Z",
"details": "2.13.0-19:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17086-2"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2024-07-23T00:00:00.000Z",
"details": "1.22.3-5:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17086-5"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2024-07-23T00:00:00.000Z",
"details": "0.7.1-20:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17086-4"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2024-07-23T00:00:00.000Z",
"details": "8.4.0-18:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17086-1"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
},
{
"category": "vendor_fix",
"date": "2024-07-23T00:00:00.000Z",
"details": "20210626-5:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
"product_ids": [
"17086-3"
],
"url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"environmentalsScore": 0.0,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"temporalScore": 7.5,
"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"
},
"products": [
"17086-2",
"17086-5",
"17086-4",
"17086-1",
"17086-3"
]
}
],
"title": "The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server."
}
]
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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