Executive Summary

Informations
Name CVE-2022-32955 First vendor Publication 2023-02-15
Vendor Cve Last vendor Modification 2023-02-23

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low 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

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the NvmExpressDxe buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated by using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the link data to SMRAM before checking it and verifying that all pointers are within the buffer.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32955

CWE : Common Weakness Enumeration

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

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 1

Sources (Detail)

Source Url
MISC https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2023015

Alert History

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Date Informations
2023-08-16 02:15:29
  • Multiple Updates
2023-08-15 02:15:33
  • Multiple Updates
2023-02-23 21:27:16
  • Multiple Updates
2023-02-16 17:27:12
  • Multiple Updates
2023-02-15 09:27:15
  • First insertion