CVE-2023-0459

Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c	Patch
https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47	Patch
https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c	Patch
https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47	Patch

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 07:37

Type	Values Removed	Values Added
References	~~() https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c - Patch~~	() https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c - Patch
References	~~() https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47 - Patch~~	() https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47 - Patch
CVSS	v2 : ~~unknown~~ v3 : ~~5.5~~	v2 : unknown v3 : 6.5

Information

Published : 2023-05-25 14:15

Updated : 2024-11-21 07:37

NVD link : CVE-2023-0459

Mitre link : CVE-2023-0459

CVE.ORG link : CVE-2023-0459

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-763

Release of Invalid Pointer or Reference

{"id": "CVE-2023-0459", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve-coordination@google.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/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": 2.8}, {"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": "2023-05-25T14:15:09.603", "references": [{"url": "https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c", "tags": ["Patch"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47", "tags": ["Patch"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-763"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-763"}]}], "descriptions": [{"lang": "en", "value": "Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the \"access_ok\" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit\u00a074e19ef0ff8061ef55957c3abd71614ef0f42f47"}], "lastModified": "2024-11-21T07:37:13.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "891AEAFE-6900-48E0-A0EA-B80FCE04588D", "versionEndExcluding": "4.14.307"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2513393F-113F-40C1-828E-542A55286974", "versionEndExcluding": "4.19.274", "versionStartIncluding": "4.19.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "01D7B24C-ACBF-43E4-BA77-9FAF9ECD6941", "versionEndExcluding": "5.4.233", "versionStartIncluding": "5.4.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A69105CF-22D5-4FE7-A3C6-C80D6CCD0E38", "versionEndExcluding": "5.10.170", "versionStartIncluding": "5.10.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B5CC1A01-8B90-47FC-A28A-9F870D9F407E", "versionEndExcluding": "5.15.96", "versionStartIncluding": "5.15.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ACB5D831-9547-4DFD-866F-DFFC1E72C13E", "versionEndExcluding": "6.1.14", "versionStartIncluding": "6.1.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "876A1437-FED6-4A5F-A74C-42B5ACC15BC7", "versionEndExcluding": "6.2.1", "versionStartIncluding": "6.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}