CVE-2021-26333

An information disclosure vulnerability exists in AMD Platform Security Processor (PSP) chipset driver. The discretionary access control list (DACL) may allow low privileged users to open a handle and send requests to the driver resulting in a potential data leak from uninitialized physical pages.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.9 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

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:C/I:N/A:N

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://packetstormsecurity.com/files/164202/AMD-Chipset-Driver-Information-Disclosure-Memory-Leak.html	Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2021/Sep/24	Mailing List Third Party Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1009	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:amd:chipset_driver::::::::
	cpe:2.3:a:amd:psp_driver::::::::

History

No history.

Information

Published : 2021-09-21 11:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-26333

Mitre link : CVE-2021-26333

CVE.ORG link : CVE-2021-26333

JSON object : View

Products Affected

amd

chipset_driver
psp_driver

CWE

CWE-909

Missing Initialization of Resource

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

{"id": "CVE-2021-26333", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "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": "2021-09-21T11:15:07.203", "references": [{"url": "http://packetstormsecurity.com/files/164202/AMD-Chipset-Driver-Information-Disclosure-Memory-Leak.html", "tags": ["Third Party Advisory", "VDB Entry"], "source": "psirt@amd.com"}, {"url": "http://seclists.org/fulldisclosure/2021/Sep/24", "tags": ["Mailing List", "Third Party Advisory"], "source": "psirt@amd.com"}, {"url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1009", "tags": ["Vendor Advisory"], "source": "psirt@amd.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-909"}]}, {"type": "Secondary", "source": "psirt@amd.com", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "An information disclosure vulnerability exists in AMD Platform Security Processor (PSP) chipset driver. The discretionary access control list (DACL) may allow low privileged users to open a handle and send requests to the driver resulting in a potential data leak from uninitialized physical pages."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n en AMD Platform Security Processor (PSP) chipset driver. La lista de control de acceso discrecional (DACL) puede permitir a usuarios con pocos privilegios abrir una manija y enviar peticiones al controlador, resultando en un potencial filtrado de datos de p\u00e1ginas f\u00edsicas no inicializadas"}], "lastModified": "2022-04-26T15:33:47.257", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:amd:chipset_driver:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E838E1F2-F531-4731-85E8-9FF187B0DA14", "versionEndExcluding": "3.08.17.735"}, {"criteria": "cpe:2.3:a:amd:psp_driver:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BAC847FF-5C06-42F2-BBCC-716D6824B066", "versionEndExcluding": "5.17.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@amd.com"}