CVE-2021-47518 (GCVE-0-2021-47518)
Vulnerability from cvelistv5 – Published: 2024-05-24 15:09 – Updated: 2026-05-11 13:56
VLAI
EPSS
VEX
Title
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
The done() netlink callback nfc_genl_dump_ses_done() should check if
received argument is non-NULL, because its allocation could fail earlier
in dumpit() (nfc_genl_dump_ses()).
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 17:36 UTC
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 87cdb8789c38e44ae5454aafe277997c950d00ed
(git)
Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 69bb79a8f5bb9f436b6f1434ca9742591b7bbe18 (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 811a7576747760bcaf60502f096d1e6e91d566fa (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 3b861a40325eac9c4c13b6c53874ad90617e944d (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 48fcd08fdbe05e35b650a252ec2a2d96057a1c7a (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 83ea620a1be840bf05089a5061fb8323ca42f38c (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < fae9705d281091254d4a81fa2da9d22346097dca (git) Affected: ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95 , < 4cd8371a234d051f9c9557fcbb1f8c523b1c0d10 (git) |
guessed | |
| Linux | Linux |
Affected:
3.12
Unaffected: 0 , < 3.12 (semver) Unaffected: 4.4.295 , ≤ 4.4.* (semver) Unaffected: 4.9.293 , ≤ 4.9.* (semver) Unaffected: 4.14.258 , ≤ 4.14.* (semver) Unaffected: 4.19.221 , ≤ 4.19.* (semver) Unaffected: 5.4.165 , ≤ 5.4.* (semver) Unaffected: 5.10.85 , ≤ 5.10.* (semver) Unaffected: 5.15.8 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-47518",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:36:30.333493Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-17T17:36:34.295Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:39:59.765Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "87cdb8789c38e44ae5454aafe277997c950d00ed",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "69bb79a8f5bb9f436b6f1434ca9742591b7bbe18",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "811a7576747760bcaf60502f096d1e6e91d566fa",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "3b861a40325eac9c4c13b6c53874ad90617e944d",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "48fcd08fdbe05e35b650a252ec2a2d96057a1c7a",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "83ea620a1be840bf05089a5061fb8323ca42f38c",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "fae9705d281091254d4a81fa2da9d22346097dca",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "4cd8371a234d051f9c9557fcbb1f8c523b1c0d10",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"lessThan": "3.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.293",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.258",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.4.295",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.293",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.258",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.221",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.165",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.85",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.8",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.16",
"versionStartIncluding": "3.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done\n\nThe done() netlink callback nfc_genl_dump_ses_done() should check if\nreceived argument is non-NULL, because its allocation could fail earlier\nin dumpit() (nfc_genl_dump_ses())."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T13:56:12.796Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
}
],
"title": "nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47518",
"datePublished": "2024-05-24T15:09:31.334Z",
"dateReserved": "2024-05-24T15:02:54.824Z",
"dateUpdated": "2026-05-11T13:56:12.796Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-47518",
"date": "2026-10-04",
"epss": "0.0024",
"percentile": "0.13684"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7C065009-08E2-4077-B054-3FAB37A97562",
"versionEndExcluding": "4.4.295",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5D107324-F4B9-4146-BACC-391E95D41D67",
"versionEndExcluding": "4.9.293",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "71B2A056-7541-4FF3-859E-C55955DDA2DD",
"versionEndExcluding": "4.14.258",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CECDDE2F-DEEF-4D3A-85FF-6AEBA16D225B",
"versionEndExcluding": "4.19.221",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B1DD3148-41FC-42AC-96A5-F63D774A97A3",
"versionEndExcluding": "5.4.165",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D9668578-08F7-4694-A86F-FCE448387A79",
"versionEndExcluding": "5.10.85",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6664ACE2-F748-4AE5-B98B-58803B0B2C3E",
"versionEndExcluding": "5.15.8",
"versionStartIncluding": "5.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done\n\nThe done() netlink callback nfc_genl_dump_ses_done() should check if\nreceived argument is non-NULL, because its allocation could fail earlier\nin dumpit() (nfc_genl_dump_ses())."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: nfc: corrige la posible deref del puntero NULL en nfc_genl_dump_ses_done La devoluci\u00f3n de llamada de netlink done() nfc_genl_dump_ses_done() debe verificar si el argumento recibido no es NULL, porque su asignaci\u00f3n podr\u00eda fallar antes en dumpit() (nfc_genl_dump_ses())."
}
],
"id": "CVE-2021-47518",
"lastModified": "2024-11-21T06:36:25.463",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-05-24T15:15:13.557",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "87cdb8789c38e44ae5454aafe277997c950d00ed",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "69bb79a8f5bb9f436b6f1434ca9742591b7bbe18",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "811a7576747760bcaf60502f096d1e6e91d566fa",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "3b861a40325eac9c4c13b6c53874ad90617e944d",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "48fcd08fdbe05e35b650a252ec2a2d96057a1c7a",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "83ea620a1be840bf05089a5061fb8323ca42f38c",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "fae9705d281091254d4a81fa2da9d22346097dca",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "4cd8371a234d051f9c9557fcbb1f8c523b1c0d10",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"lessThan": "3.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.293",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.258",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7C065009-08E2-4077-B054-3FAB37A97562",
"versionEndExcluding": "4.4.295",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5D107324-F4B9-4146-BACC-391E95D41D67",
"versionEndExcluding": "4.9.293",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "71B2A056-7541-4FF3-859E-C55955DDA2DD",
"versionEndExcluding": "4.14.258",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CECDDE2F-DEEF-4D3A-85FF-6AEBA16D225B",
"versionEndExcluding": "4.19.221",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B1DD3148-41FC-42AC-96A5-F63D774A97A3",
"versionEndExcluding": "5.4.165",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D9668578-08F7-4694-A86F-FCE448387A79",
"versionEndExcluding": "5.10.85",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6664ACE2-F748-4AE5-B98B-58803B0B2C3E",
"versionEndExcluding": "5.15.8",
"versionStartIncluding": "5.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done\n\nThe done() netlink callback nfc_genl_dump_ses_done() should check if\nreceived argument is non-NULL, because its allocation could fail earlier\nin dumpit() (nfc_genl_dump_ses())."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: nfc: corrige la posible deref del puntero NULL en nfc_genl_dump_ses_done La devoluci\u00f3n de llamada de netlink done() nfc_genl_dump_ses_done() debe verificar si el argumento recibido no es NULL, porque su asignaci\u00f3n podr\u00eda fallar antes en dumpit() (nfc_genl_dump_ses())."
}
],
"id": "CVE-2021-47518",
"lastModified": "2026-06-17T04:17:40.657",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-47518",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:36:30.333493Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-24T15:15:13.557",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2025-11-21T14:40:02+00:00",
"cve": "CVE-2021-47518",
"id": "CVE-2021-47518",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47518.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-04T17:00:26Z",
"cve": "CVE-2021-47518",
"id": "CVE-2021-47518",
"initial_release_date": "2024-05-28T03:32:47Z",
"product_status:known_affected": "427",
"product_status:known_not_affected": "60",
"product_status:recommended": "627",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2021-47518",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47518.json",
"version": "64"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:39:59.765Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-47518",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-17T17:36:30.333493Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-17T17:36:31.345Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "87cdb8789c38e44ae5454aafe277997c950d00ed",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "69bb79a8f5bb9f436b6f1434ca9742591b7bbe18",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "811a7576747760bcaf60502f096d1e6e91d566fa",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "3b861a40325eac9c4c13b6c53874ad90617e944d",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "48fcd08fdbe05e35b650a252ec2a2d96057a1c7a",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "83ea620a1be840bf05089a5061fb8323ca42f38c",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "fae9705d281091254d4a81fa2da9d22346097dca",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
},
{
"lessThan": "4cd8371a234d051f9c9557fcbb1f8c523b1c0d10",
"status": "affected",
"version": "ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/nfc/netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"lessThan": "3.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.293",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.258",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.85",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.4.295",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.293",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.258",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.221",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.165",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.85",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.8",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.16",
"versionStartIncluding": "3.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done\n\nThe done() netlink callback nfc_genl_dump_ses_done() should check if\nreceived argument is non-NULL, because its allocation could fail earlier\nin dumpit() (nfc_genl_dump_ses())."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T07:12:43.077Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/87cdb8789c38e44ae5454aafe277997c950d00ed"
},
{
"url": "https://git.kernel.org/stable/c/69bb79a8f5bb9f436b6f1434ca9742591b7bbe18"
},
{
"url": "https://git.kernel.org/stable/c/811a7576747760bcaf60502f096d1e6e91d566fa"
},
{
"url": "https://git.kernel.org/stable/c/3b861a40325eac9c4c13b6c53874ad90617e944d"
},
{
"url": "https://git.kernel.org/stable/c/48fcd08fdbe05e35b650a252ec2a2d96057a1c7a"
},
{
"url": "https://git.kernel.org/stable/c/83ea620a1be840bf05089a5061fb8323ca42f38c"
},
{
"url": "https://git.kernel.org/stable/c/fae9705d281091254d4a81fa2da9d22346097dca"
},
{
"url": "https://git.kernel.org/stable/c/4cd8371a234d051f9c9557fcbb1f8c523b1c0d10"
}
],
"title": "nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-47518",
"datePublished": "2024-05-24T15:09:31.334Z",
"dateReserved": "2024-05-24T15:02:54.824Z",
"dateUpdated": "2025-05-04T07:12:43.077Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…