FKIE_CVE-2021-47336
Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2026-06-17 04:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
smackfs: restrict bytes count in smk_set_cipso()
Oops, I failed to update subject line.
From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001
Date: Mon, 12 Apr 2021 22:25:06 +0900
Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso()
Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write
functions") missed that count > SMK_CIPSOMAX check applies to only
format == SMK_FIXED24_FMT case.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"security/smack/smackfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5f9880403e6b71d56924748ba331daf836243fca",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "cbd87ba6a13891acf6180783f8234a8b7a3e3d4d",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "135122f174c357b7a3e58f40fa5792156c5e93e6",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "3780348c1a0e14ffefcaf1fc521f815bcaac94b0",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "8f5c773a2871cf446e3f36b2834fb25bbb28512b",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "258fd821f69378453c071b9dd767b298810fc766",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
},
{
"lessThan": "49ec114a6e62d8d320037ce71c1aaf9650b3cafd",
"status": "affected",
"version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"security/smack/smackfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.5"
},
{
"lessThan": "3.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.276",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.240",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.198",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.133",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.51",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"version": "5.12.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.13.*",
"status": "unaffected",
"version": "5.13.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E29241F7-82A8-4B5A-B9C9-1B8A6F470DBA",
"versionEndExcluding": "4.9.276",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FB359B2E-773D-4D52-9915-E07A47ABE72B",
"versionEndExcluding": "4.14.240",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B93AEDB9-C52B-4222-8F9A-882DAD9EF5B2",
"versionEndExcluding": "4.19.198",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "65A8F1FF-5639-455A-8BF4-9FF529240505",
"versionEndExcluding": "5.4.133",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "93289127-DFB3-4515-89DD-50521FF8B7FF",
"versionEndExcluding": "5.10.51",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "79D13C82-E06F-4A70-A3D1-C09494FBC94D",
"versionEndExcluding": "5.12.18",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "853187F6-707A-487B-95C0-621B5211B43C",
"versionEndExcluding": "5.13.3",
"versionStartIncluding": "5.13",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmackfs: restrict bytes count in smk_set_cipso()\n\nOops, I failed to update subject line.\n\nFrom 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001\nDate: Mon, 12 Apr 2021 22:25:06 +0900\nSubject: [PATCH] smackfs: restrict bytes count in smk_set_cipso()\n\nCommit 7ef4c19d245f3dc2 (\"smackfs: restrict bytes count in smackfs write\nfunctions\") missed that count \u003e SMK_CIPSOMAX check applies to only\nformat == SMK_FIXED24_FMT case."
},
{
"lang": "es",
"value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: smackfs: restringir el recuento de bytes en smk_set_cipso() Oops, no pude actualizar la l\u00ednea de asunto. De 07571157c91b98ce1a4aa70967531e64b78e8346 lunes 17 de septiembre 00:00:00 2001 Fecha: lunes 12 de abril de 2021 22:25:06 +0900 Asunto: [PATCH] smackfs: restringir el recuento de bytes en smk_set_cipso() Confirmaci\u00f3n 7ef4c1 9d245f3dc2 (\"smackfs: restringir el recuento de bytes en smackfs funciones de escritura\") perdi\u00f3 ese recuento \u0026gt; La verificaci\u00f3n SMK_CIPSOMAX se aplica solo al formato == caso SMK_FIXED24_FMT."
}
],
"id": "CVE-2021-47336",
"lastModified": "2026-06-17T04:17:13.620",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-47336",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-21T18:44:23.247823Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-21T15:15:20.437",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6"
},
{
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},
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],
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},
{
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],
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},
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{
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"tags": [
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0"
},
{
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{
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"url": "https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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