CVE-2021-47287

In the Linux kernel, the following vulnerability has been resolved: driver core: auxiliary bus: Fix memory leak when driver_register() fail If driver_register() returns with error we need to free the memory allocated for auxdrv->driver.name before returning from __auxiliary_driver_register()

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3	Patch
https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409	Patch
https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3	Patch
https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc2::::::

History

23 Dec 2024, 16:40

Type	Values Removed	Values Added
First Time		Linux linux Kernel Linux
CWE		CWE-401
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
References	~~() https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3 -~~	() https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3 - Patch
References	~~() https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409 -~~	() https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409 - Patch
CPE		cpe:2.3:o:linux:linux_kernel:5.14:rc2:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.14:rc1::::::

Information

Published : 2024-05-21 15:15

Updated : 2024-12-23 16:40

NVD link : CVE-2021-47287

Mitre link : CVE-2021-47287

CVE.ORG link : CVE-2021-47287

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

{"id": "CVE-2021-47287", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-05-21T15:15:16.797", "references": [{"url": "https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: auxiliary bus: Fix memory leak when driver_register() fail\n\nIf driver_register() returns with error we need to free the memory\nallocated for auxdrv->driver.name before returning from\n__auxiliary_driver_register()"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: n\u00facleo del controlador: bus auxiliar: corrige la p\u00e9rdida de memoria cuando falla driver_register(). Si driver_register() regresa con error, necesitamos liberar la memoria asignada para auxdrv->driver.name antes de regresar de __auxiliary_driver_register()"}], "lastModified": "2024-12-23T16:40:14.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512C22FC-1524-4E6F-9E62-4F4B7B6E0576", "versionEndExcluding": "5.13.6", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "71268287-21A8-4488-AA4F-23C473153131"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "23B9E5C6-FAB5-4A02-9E39-27C8787B0991"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}