CVE-2022-33986

 

Published at: - 15-11-2022 01:15

Last modified: - 18-11-2022 04:48

Total changes: - 3

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

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

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

 

Keywords

NVD

 

CVE-2022-33986

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures