CVE-2021-25481

An improper error handling in Exynos CP booting driver prior to SMR Oct-2021 Release 1 allows local attackers to bypass a Secure Memory Protector of Exynos CP Memory.

CVSS v3 6.7 MEDIUM
CVSS v2.0 4.6 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:google:android:8.1:::::::*
	cpe:2.3:o:google:android:9.0:::::::*
	cpe:2.3:o:google:android:10.0:::::::*
	cpe:2.3:o:google:android:11.0:::::::*

cpe:2.3:h:samsung:exynos:-:*:*:*:*:*:*:*

History

13 Oct 2021, 17:41

Type	Values Removed	Values Added
References	~~(MISC) https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 -~~	(MISC) https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 - Vendor Advisory
CWE		CWE-754
CPE		cpe:2.3:o:google:android:8.1:::::::* cpe:2.3:o:google:android:10.0:::::::* cpe:2.3:o:google:android:9.0:::::::* cpe:2.3:o:google:android:11.0:::::::* cpe:2.3:h:samsung:exynos:-:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 4.6 v3 : 6.7

06 Oct 2021, 18:39

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-10-06 18:15

Updated : 2024-02-04 22:08

NVD link : CVE-2021-25481

Mitre link : CVE-2021-25481

CVE.ORG link : CVE-2021-25481

JSON object : View

Products Affected

google

android

samsung

exynos

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

{"id": "CVE-2021-25481", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "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": 6.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.8}, {"type": "Secondary", "source": "mobile.security@samsung.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}]}, "published": "2021-10-06T18:15:09.267", "references": [{"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10", "tags": ["Vendor Advisory"], "source": "mobile.security@samsung.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-754"}]}, {"type": "Secondary", "source": "mobile.security@samsung.com", "description": [{"lang": "en", "value": "CWE-754"}]}], "descriptions": [{"lang": "en", "value": "An improper error handling in Exynos CP booting driver prior to SMR Oct-2021 Release 1 allows local attackers to bypass a Secure Memory Protector of Exynos CP Memory."}, {"lang": "es", "value": "Un manejo inapropiado de errores en Exynos CP booting driver versiones anteriores a SMR Oct-2021 Release 1, permite a atacantes locales omitir un protector de memoria seguro de la memoria de Exynos CP"}], "lastModified": "2021-10-13T17:41:09.577", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B06BE74B-83F4-41A3-8AD3-2E6248F7B0B2"}, {"criteria": "cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DFAAD08-36DA-4C95-8200-C29FE5B6B854"}, {"criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3"}, {"criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:samsung:exynos:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E04D5D21-1755-4766-8302-A0BE61EE9F43"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "mobile.security@samsung.com"}