// For flags

CVE-2022-31243

 

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

Update description and links DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption through a TOCTOU attack.. "DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in Kernel 5.2: 05.27.21. Kernel 5.3: 05.36.21. Kernel 5.4: 05.44.21. Kernel 5.5: 05.52.21 https://www.insyde.com/security-pledge/SA-2022044

Actualizar descripción y enlaces Las transacciones DMA que están dirigidas a los búferes de entrada utilizados para el controlador SMI de software utilizado por el controlador FvbServicesRuntimeDxe podrían causar corrupción de SMRAM a través de un ataque TOCTOU. "Las transacciones DMA que están dirigidas a los búferes de entrada utilizados para el controlador SMI de software utilizado por el controlador FvbServicesRuntimeDxe podría causar corrupción de SMRAM. Este problema fue descubierto por ingeniería de Insyde basándose en la descripción general proporcionada por el grupo iSTARE de Intel. Corregido en Kernel 5.2: 05.27.21. Kernel 5.3: 05.36.21. Kernel 5.4: 05.44.21. Kernel 5.5: 05.52.21 https://www.insyde.com/security-pledge/SA-2022044

*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
  • 2022-05-19 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"
 >= 5.2 < 5.2.05.27.21
Search vendor "Insyde" for product "Kernel" and version " >= 5.2 < 5.2.05.27.21"
-
Affected
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.3 < 5.3.05.36.21
Search vendor "Insyde" for product "Kernel" and version " >= 5.3 < 5.3.05.36.21"
-
Affected
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.4 < 5.4.05.44.21
Search vendor "Insyde" for product "Kernel" and version " >= 5.4 < 5.4.05.44.21"
-
Affected
Insyde
Search vendor "Insyde"
 Kernel
Search vendor "Insyde" for product "Kernel"
 >= 5.5 < 5.5.05.52.21
Search vendor "Insyde" for product "Kernel" and version " >= 5.5 < 5.5.05.52.21"
-
Affected