Executive Summary

Informations
Name CVE-2022-33986 First vendor Publication 2022-11-15
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.4
Base Score 6.4 Environmental Score 6.4
impact SubScore 5.9 Temporal Score 6.4
Exploitabality Sub Score 0.5
 
Attack Vector Local Attack Complexity High
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-33986

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 7

Sources (Detail)

https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2022056
Source Url

Alert History

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Date Informations
2024-11-28 14:12:59
  • Multiple Updates
2023-08-03 02:15:15
  • Multiple Updates
2022-11-23 21:27:18
  • Multiple Updates
2022-11-18 21:27:15
  • Multiple Updates
2022-11-16 02:07:52
  • Multiple Updates
2022-11-16 02:06:44
  • Multiple Updates
2022-11-15 17:27:12
  • Multiple Updates
2022-11-15 05:27:13
  • First insertion