// For flags

CVE-2022-33986

 

Severity Score

6.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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

Los ataques DMA al búfer de parámetros utilizado por el controlador SMI del software VariableRuntimeDxe podrían provocar un ataque TOCTOU. Los ataques DMA al búfer de parámetros utilizado por el controlador SMI de software utilizado por el controlador VariableRuntimeDxe podrían provocar un ataque TOCTOU al controlador SMI y provocar la corrupción de SMRAM. Este problema fue descubierto por la ingeniería de Insyde durante una revisión de seguridad. Este problema se solucionó en Kernel 5.4: 05.44.23 y Kernel 5.5: 05.52.23. CWE-367 Informe CWE-367 en: https://www.insyde.com/security-pledge/SA-2022056

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-06-18 CVE Reserved
  • 2022-11-14 CVE Published
  • 2024-06-06 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.4 < 5.4.05.44.23
Search vendor "Insyde" for product "Kernel" and version " >= 5.4 < 5.4.05.44.23"
-
Affected
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.5 < 5.5.05.52.23
Search vendor "Insyde" for product "Kernel" and version " >= 5.5 < 5.5.05.52.23"
-
Affected