FKIE_CVE-2022-2196
Vulnerability from fkie_nvd - Published: 2023-01-09 11:15 - Updated: 2026-08-07 19:17
Severity
5.8 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| debian | debian_linux | 10.0 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "KVM",
"product": "Linux Kernel",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f93a1a5bdcdd122aae0a3eab7a52c15b71fb725b",
"status": "affected",
"version": "64b8f33b2e1e687d465b5cb382e7bec495f1e026",
"versionType": "git"
},
{
"lessThan": "2e7eab81425ad6c875f2ed47c0ce01e78afc38a5",
"status": "affected",
"version": "e089a83fbc55b8057f332c00f125acaa02b08ef7",
"versionType": "git"
},
{
"lessThan": "2e7eab81425ad6c875f2ed47c0ce01e78afc38a5",
"status": "affected",
"version": "02a3868d18fe639363f1cea6e6d7914513198e43",
"versionType": "git"
},
{
"lessThan": "1b0cafaae8884726c597caded50af185ffc13349",
"status": "affected",
"version": "5c911beff20aa8639e7a1f28988736c13e03ed54",
"versionType": "git"
},
{
"lessThan": "6b539a7dbb49250f92515c2ba60aea239efc9e35",
"status": "affected",
"version": "5c911beff20aa8639e7a1f28988736c13e03ed54",
"versionType": "git"
},
{
"lessThan": "63fada296062e91ad9f871970d4e7f19e21a6a15",
"status": "affected",
"version": "5c911beff20aa8639e7a1f28988736c13e03ed54",
"versionType": "git"
},
{
"lessThan": "2e7eab81425ad6c875f2ed47c0ce01e78afc38a5",
"status": "affected",
"version": "5c911beff20aa8639e7a1f28988736c13e03ed54",
"versionType": "git"
},
{
"lessThan": "5.4.233",
"status": "affected",
"version": "5.4.47",
"versionType": "semver"
},
{
"lessThan": "5.7.0",
"status": "affected",
"version": "5.6.19",
"versionType": "semver"
},
{
"lessThan": "5.8.0",
"status": "affected",
"version": "5.7.3",
"versionType": "semver"
},
{
"lessThan": "5.10.170",
"status": "affected",
"version": "5.8.0",
"versionType": "semver"
},
{
"lessThan": "5.15.96",
"status": "affected",
"version": "5.11.0",
"versionType": "semver"
},
{
"lessThan": "6.1.14",
"status": "affected",
"version": "5.16.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.2.0",
"versionType": "semver"
}
]
}
],
"source": "cve-coordination@google.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D73442D9-8AEA-46EF-BDFE-A7DA3F4256CB",
"versionEndExcluding": "5.4.233",
"versionStartIncluding": "5.4.47",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1D059EB4-CC70-4B73-A918-FCD19DD26EEF",
"versionEndExcluding": "5.7",
"versionStartIncluding": "5.6.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A90F1F96-608E-46B6-848B-CAAA543D8E77",
"versionEndExcluding": "5.10.170",
"versionStartIncluding": "5.7.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0845BF9E-3498-4C4E-AE1E-2F4FD31B440E",
"versionEndExcluding": "5.15.96",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E5FED97E-E13D-4287-892D-F8A8C081B5EA",
"versionEndExcluding": "6.1.14",
"versionStartIncluding": "5.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks.\u00a0L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn\u0027t need retpolines or IBPB\u00a0after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14)."
},
{
"lang": "es",
"value": "Existe una regresi\u00f3n en el kernel de Linux dentro de KVM: nVMX que permiti\u00f3 ataques de ejecuci\u00f3n especulativa. L2 puede llevar a cabo ataques Spectre v2 en L1 debido a que L1 piensa que no necesita retpolines o IBPB despu\u00e9s de ejecutar L2 debido a que KVM (L0) anuncia soporte eIBRS en L1. Un atacante en L2 con ejecuci\u00f3n de c\u00f3digo puede ejecutar c\u00f3digo en una rama indirecta en la m\u00e1quina host. Recomendamos actualizar al Kernel 6.2 o al commit anterior 2e7eab81425a"
}
],
"id": "CVE-2022-2196",
"lastModified": "2026-08-07T19:17:31.747",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 4.7,
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-2196",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-01T15:07:47.721131Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-01-09T11:15:10.583",
"references": [
{
"source": "cve-coordination@google.com",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1b0cafaae8884726c597caded50af185ffc13349"
},
{
"source": "cve-coordination@google.com",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=63fada296062e91ad9f871970d4e7f19e21a6a15"
},
{
"source": "cve-coordination@google.com",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6b539a7dbb49250f92515c2ba60aea239efc9e35"
},
{
"source": "cve-coordination@google.com",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f93a1a5bdcdd122aae0a3eab7a52c15b71fb725b"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Mailing List",
"Patch",
"Vendor Advisory"
],
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2e7eab81425ad6c875f2ed47c0ce01e78afc38a5"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://kernel.dance/#2e7eab81425a"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch",
"Vendor Advisory"
],
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2e7eab81425ad6c875f2ed47c0ce01e78afc38a5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://kernel.dance/#2e7eab81425a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20230223-0002/"
}
],
"sourceIdentifier": "cve-coordination@google.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1188"
}
],
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-1188"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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