FKIE_CVE-2021-47347
Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2026-08-04 10:16
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/
Summary
In the Linux kernel, the following vulnerability has been resolved:
wl1251: Fix possible buffer overflow in wl1251_cmd_scan
Function wl1251_cmd_scan calls memcpy without checking the length.
Harden by checking the length is within the maximum allowed size.
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 | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ti/wl1251/cmd.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "57ad99ae3c6738ba87bad259bb57c641ca68ebf6",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "d3d8b9c9c7843dce31e284927d4c9904fd5a510a",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "0f6c0488368c9ac1aa685821916fadba32f5d1ef",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "115103f6e3f1c26c473766c16439c7c8b235529a",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "d71dddeb5380613f9ef199f3e7368fd78fb1a46e",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "c5e4a10d7bd5d4f419d8b9705dff60cf69b302a1",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "40af3960a15339e8bbd3be50c3bc7b35e1a0b6ea",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
},
{
"lessThan": "d10a87a3535cce2b890897914f5d0d83df669c63",
"status": "affected",
"version": "2f01a1f58889fbfeb68b1bc1b52e4197f3333490",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ti/wl1251/cmd.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.31"
},
{
"lessThan": "2.6.31",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.276",
"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": "10282F37-B17F-4974-967E-FCD5ABC9AB8E",
"versionEndExcluding": "4.4.276",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C79FFC06-9530-4CD7-B651-01D786CC925E",
"versionEndExcluding": "4.9.276",
"versionStartIncluding": "4.5",
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},
{
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},
{
"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",
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},
{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "79D13C82-E06F-4A70-A3D1-C09494FBC94D",
"versionEndExcluding": "5.12.18",
"versionStartIncluding": "5.11",
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},
{
"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\nwl1251: Fix possible buffer overflow in wl1251_cmd_scan\n\nFunction wl1251_cmd_scan calls memcpy without checking the length.\nHarden by checking the length is within the maximum allowed size."
},
{
"lang": "es",
"value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: wl1251: corrige posible desbordamiento del buffer en wl1251_cmd_scan. La funci\u00f3n wl1251_cmd_scan llama a memcpy sin comprobar la longitud. Endurecer comprobando que el largo est\u00e9 dentro del tama\u00f1o m\u00e1ximo permitido."
}
],
"id": "CVE-2021-47347",
"lastModified": "2026-08-04T10:16:59.057",
"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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
"cvssData": {
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"options": [
{
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},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-11-13T22:00:32.437065Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-21T15:15:21.287",
"references": [
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
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"value": "CWE-120"
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"type": "Secondary"
}
]
}
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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
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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