CVE-2024-44931

In the Linux kernel, the following vulnerability has been resolved: gpio: prevent potential speculation leaks in gpio_device_get_desc() Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc(). This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

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 HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/18504710442671b02d00e6db9804a0ad26c5a479
https://git.kernel.org/stable/c/1b955f786a4bcde8c0ccb2b7d519def2acb6f3cc	Patch
https://git.kernel.org/stable/c/672c19165fc96dfad531a5458e0b3cdab414aae4
https://git.kernel.org/stable/c/9ae2d8e75b741dbcb0da374753f972410e83b5f3
https://git.kernel.org/stable/c/9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0
https://git.kernel.org/stable/c/c65ab97efcd438cb4e9f299400f2ea55251f3a67
https://git.kernel.org/stable/c/d776c0486b03a5c4afca65b8ff44573592bf93bb	Patch
https://git.kernel.org/stable/c/d795848ecce24a75dfd46481aee066ae6fe39775	Patch

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2024-08-26 11:15

Updated : 2024-11-08 16:15

NVD link : CVE-2024-44931

Mitre link : CVE-2024-44931

CVE.ORG link : CVE-2024-44931

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2024-44931", "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:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-08-26T11:15:05.447", "references": [{"url": "https://git.kernel.org/stable/c/18504710442671b02d00e6db9804a0ad26c5a479", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1b955f786a4bcde8c0ccb2b7d519def2acb6f3cc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/672c19165fc96dfad531a5458e0b3cdab414aae4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9ae2d8e75b741dbcb0da374753f972410e83b5f3", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c65ab97efcd438cb4e9f299400f2ea55251f3a67", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d776c0486b03a5c4afca65b8ff44573592bf93bb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d795848ecce24a75dfd46481aee066ae6fe39775", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: prevent potential speculation leaks in gpio_device_get_desc()\n\nUserspace may trigger a speculative read of an address outside the gpio\ndescriptor array.\nUsers can do that by calling gpio_ioctl() with an offset out of range.\nOffset is copied from user and then used as an array index to get\nthe gpio descriptor without sanitization in gpio_device_get_desc().\n\nThis change ensures that the offset is sanitized by using\narray_index_nospec() to mitigate any possibility of speculative\ninformation leaks.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: gpio: evita posibles fugas de especulaci\u00f3n en gpio_device_get_desc() El espacio de usuario puede desencadenar una lectura especulativa de una direcci\u00f3n fuera de la matriz de descriptores de gpio. Los usuarios pueden hacerlo llamando a gpio_ioctl() con un desplazamiento fuera de rango. La compensaci\u00f3n se copia del usuario y luego se usa como \u00edndice de matriz para obtener el descriptor de gpio sin desinfecci\u00f3n en gpio_device_get_desc(). Este cambio garantiza que la compensaci\u00f3n se desinfecte mediante el uso de array_index_nospec() para mitigar cualquier posibilidad de fugas de informaci\u00f3n especulativa. Este error fue descubierto y resuelto utilizando Coverity Static Analysis Security Testing (SAST) por Synopsys, Inc."}], "lastModified": "2024-11-08T16:15:22.593", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "84C35A98-08C9-4674-8AC8-9CC0757B7699", "versionEndExcluding": "6.6.46"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D074AE50-4A5E-499C-A2FD-75FD60DEA560", "versionEndExcluding": "6.10.5", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}