CVE-2022-33986
CVSS V2 None
CVSS V3 Medium 6.4
Description
DMA attacks on the parameter buffer used by the VariableRuntimeDxe software SMI handler could lead to a TOCTOU attack. DMA attacks on the parameter buffer used by the software SMI handler used by the driver VariableRuntimeDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23. CWE-367 CWE-367 Report at: https://www.insyde.com/security-pledge/SA-2022056
Overview
- CVE ID
- CVE-2022-33986
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-11-15T00:15:12
- Last Modified Date
- 2022-11-18T15:48:27
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.4 | 5.4.05.44.23 |
| cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.5 | 5.5.05.52.23 |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.4
- Base Severity
- MEDIUM
- Exploitability Score
- 0.5
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.insyde.com/security-pledge/SA-2022056 | |
| https://www.insyde.com/security-pledge |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-33986 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33986 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-11-15 01:00:13 | Added to TrackCVE | |||
| 2022-12-07 17:43:33 | 2022-11-15T00:15Z | 2022-11-15T00:15:12 | CVE Published Date | updated |
| 2022-12-07 17:43:33 | 2022-11-18T15:48:27 | CVE Modified Date | updated | |
| 2022-12-07 17:43:33 | Analyzed | Vulnerability Status | updated | |
| 2022-12-07 17:43:35 | CPE Information | updated |