CVE-2021-45971
CVSS V2 High 7.2
CVSS V3 High 8.2
Description
An issue was discovered in SdHostDriver 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 (CommBufferData).
Overview
- CVE ID
- CVE-2021-45971
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-01-06T00:15:07
- Last Modified Date
- 2022-03-29T16:35:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 1 | OR | 5.1 | 5.16.25 |
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 1 | OR | 5.2 | 5.26.25 |
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 1 | OR | 5.3 | 5.35.25 |
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 1 | OR | 5.4 | 5.43.25 |
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 1 | OR | 5.5 | 05.51.25 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.2
- Base Severity
- HIGH
- Exploitability Score
- 1.5
- Impact Score
- 6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.insyde.com/security-pledge | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220216-0004/ | Third Party Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-45971 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45971 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:41:02 | Added to TrackCVE | |||
| 2022-12-06 05:45:19 | 2022-01-06T00:15Z | 2022-01-06T00:15:07 | CVE Published Date | updated |
| 2022-12-06 05:45:19 | 2022-03-29T16:35:15 | CVE Modified Date | updated | |
| 2022-12-06 05:45:19 | Analyzed | Vulnerability Status | updated |