CVE-2021-45969

An issue was discovered in AhciBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the CommBuffer+8 location).

CVSS v3 8.2 HIGH
CVSS v2.0 7.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.5 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf	Third Party Advisory
https://security.netapp.com/advisory/ntap-20220216-0004/	Third Party Advisory
https://www.insyde.com/security-pledge	Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf	Third Party Advisory
https://security.netapp.com/advisory/ntap-20220216-0004/	Third Party Advisory
https://www.insyde.com/security-pledge	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Configuration 5 (hide)

cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:33

Type	Values Removed	Values Added
References	~~() https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf - Third Party Advisory~~	() https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf - Third Party Advisory
References	~~() https://security.netapp.com/advisory/ntap-20220216-0004/ - Third Party Advisory~~	() https://security.netapp.com/advisory/ntap-20220216-0004/ - Third Party Advisory
References	~~() https://www.insyde.com/security-pledge - Vendor Advisory~~	() https://www.insyde.com/security-pledge - Vendor Advisory

29 Mar 2022, 16:35

Type	Values Removed	Values Added
References	~~(CONFIRM) https://security.netapp.com/advisory/ntap-20220216-0004/ -~~	(CONFIRM) https://security.netapp.com/advisory/ntap-20220216-0004/ - Third Party Advisory
References	~~(CONFIRM) https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf -~~	(CONFIRM) https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf - Third Party Advisory

24 Feb 2022, 15:15

Type	Values Removed	Values Added
References		(CONFIRM) https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf -

17 Feb 2022, 01:15

Type	Values Removed	Values Added
References		(CONFIRM) https://security.netapp.com/advisory/ntap-20220216-0004/ -

08 Feb 2022, 21:19

Type	Values Removed	Values Added
CWE	~~CWE-120~~	CWE-787
CVSS	v2 : ~~7.5~~ v3 : ~~9.8~~	v2 : 7.2 v3 : 8.2

13 Jan 2022, 19:27

Type	Values Removed	Values Added
CPE		cpe:2.3:a:insyde:insydeh2o::::::::
References	~~(MISC) https://www.insyde.com/security-pledge -~~	(MISC) https://www.insyde.com/security-pledge - Vendor Advisory
CWE		CWE-120
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8

05 Jan 2022, 23:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-01-05 23:15

Updated : 2024-11-21 06:33

NVD link : CVE-2021-45969

Mitre link : CVE-2021-45969

CVE.ORG link : CVE-2021-45969

JSON object : View

Products Affected

insyde

insydeh2o

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-45969", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.5}]}, "published": "2022-01-05T23:15:08.833", "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.netapp.com/advisory/ntap-20220216-0004/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.insyde.com/security-pledge", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20220216-0004/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.insyde.com/security-pledge", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in AhciBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the CommBuffer+8 location)."}, {"lang": "es", "value": "Se ha detectado un problema en AhciBusDxe en InsydeH2O con el kernel 5.1 anteriores a 05.16.25, 5.2 anteriores a 05.26.25, 5.3 anteriores a 05.35.25, 5.4 anteriores a 05.43.25 y 5.5 anteriores a 05.51.25. Se presenta una vulnerabilidad en la rama SMM (System Management Mode) que registra un manejador SWSMI que no comprueba o valida suficientemente el puntero del buffer asignado (la ubicaci\u00f3n CommBuffer+8)."}], "lastModified": "2024-11-21T06:33:23.950", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A6D01558-E38E-4A46-94A7-6F43BECA2599", "versionEndExcluding": "5.16.25", "versionStartIncluding": "5.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E8E5C28-ACA1-46AC-B0C0-958B7805F75A", "versionEndExcluding": "5.26.25", "versionStartIncluding": "5.2"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6AA45E92-34FA-4583-938D-2139F870034F", "versionEndExcluding": "5.35.25", "versionStartIncluding": "5.3"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "81782BA4-3BE8-4C12-BBA1-584C7EF98358", "versionEndExcluding": "5.43.25", "versionStartIncluding": "5.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6EC229D4-4C67-4B44-ACEE-48DB31C87C4C", "versionEndExcluding": "05.51.25", "versionStartIncluding": "5.5"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}