CVE-2021-47039 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: ataflop: potential out of bounds in do_format() The function uses "type" as an array index: q = unit[drive].disk[type]->queue; Unfortunately the bounds check on "type" isn't done until later in the function. Fix this by moving the bounds check to the start.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671
https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1
https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957
https://lore.kernel.org/linux-cve-announce/2024022837-CVE-2021-47039-638f@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-47039
https://www.cve.org/CVERecord?id=CVE-2021-47039

History

Thu, 09 Jan 2025 16:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
Metrics	cvssV3_1 `{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'}`	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'}`

Mon, 04 Nov 2024 13:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-28T08:13:45.937Z

Updated: 2024-12-19T07:34:06.211Z

Reserved: 2024-02-27T18:42:55.968Z

Link: CVE-2021-47039

Vulnrichment

Updated: 2024-08-04T05:24:39.421Z

NVD

Status : Analyzed

Published: 2024-02-28T09:15:39.950

Modified: 2025-01-09T15:31:27.123

Link: CVE-2021-47039

Redhat

Severity : Low

Publid Date: 2024-02-28T00:00:00Z

Links: CVE-2021-47039 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47039", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.968Z", "datePublished": "2024-02-28T08:13:45.937Z", "dateUpdated": "2024-12-19T07:34:06.211Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T07:34:06.211Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nataflop: potential out of bounds in do_format()\n\nThe function uses \"type\" as an array index:\n\n\tq = unit[drive].disk[type]->queue;\n\nUnfortunately the bounds check on \"type\" isn't done until later in the\nfunction. Fix this by moving the bounds check to the start."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/ataflop.c"], "versions": [{"version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "07f86aa8f4fe077be1b018cc177eb8c6573e5671", "status": "affected", "versionType": "git"}, {"version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "2a3a8bbca28b899806844c00d49ed1b7ccb50957", "status": "affected", "versionType": "git"}, {"version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "1ffec389a6431782a8a28805830b6fae9bf00af1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/ataflop.c"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.21", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.4", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671"}, {"url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957"}, {"url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1"}], "title": "ataflop: potential out of bounds in do_format()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47039", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-28T19:19:31.846169Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:14:17.074Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.421Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.421Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47039", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-28T19:19:31.846169Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:13.667Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "ataflop: potential out of bounds in do_format()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "07f86aa8f4fe077be1b018cc177eb8c6573e5671", "versionType": "git"}, {"status": "affected", "version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "2a3a8bbca28b899806844c00d49ed1b7ccb50957", "versionType": "git"}, {"status": "affected", "version": "bf9c0538e485b591a2ee02d9adb8a99db4be5a2a", "lessThan": "1ffec389a6431782a8a28805830b6fae9bf00af1", "versionType": "git"}], "programFiles": ["drivers/block/ataflop.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"status": "unaffected", "version": "0", "lessThan": "5.11", "versionType": "semver"}, {"status": "unaffected", "version": "5.11.21", "versionType": "semver", "lessThanOrEqual": "5.11.*"}, {"status": "unaffected", "version": "5.12.4", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/block/ataflop.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671"}, {"url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957"}, {"url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nataflop: potential out of bounds in do_format()\n\nThe function uses \"type\" as an array index:\n\n\tq = unit[drive].disk[type]->queue;\n\nUnfortunately the bounds check on \"type\" isn't done until later in the\nfunction. Fix this by moving the bounds check to the start."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T07:34:06.211Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47039", "state": "PUBLISHED", "dateUpdated": "2024-12-19T07:34:06.211Z", "dateReserved": "2024-02-27T18:42:55.968Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-28T08:13:45.937Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8CBB94EC-EC33-4464-99C5-03E5542715F0", "versionEndExcluding": "5.11.21", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8C7052F-1B7B-4327-9C2B-84EBF3243838", "versionEndExcluding": "5.12.4", "versionStartIncluding": "5.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nataflop: potential out of bounds in do_format()\n\nThe function uses \"type\" as an array index:\n\n\tq = unit[drive].disk[type]->queue;\n\nUnfortunately the bounds check on \"type\" isn't done until later in the\nfunction. Fix this by moving the bounds check to the start."}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ataflop: potencial fuera de los l\u00edmites en do_format() La funci\u00f3n utiliza \"tipo\" como \u00edndice de matriz: q = unidad[unidad].disco[tipo]->cola; Desafortunadamente, la verificaci\u00f3n de los l\u00edmites en \"tipo\" no se realiza hasta m\u00e1s adelante en la funci\u00f3n. Solucione este problema moviendo la verificaci\u00f3n de los l\u00edmites al inicio."}], "id": "CVE-2021-47039", "lastModified": "2025-01-09T15:31:27.123", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-02-28T09:15:39.950", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}