CVE-2022-33909 Information

Description

DMA transactions which are targeted at input buffers used for the HddPassword software SMI handler 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 HddPassword driver could cause SMRAM corruption through a TOCTOU attack..This issue was discovered by Insyde engineering based on the general description provided by Intel’s iSTARE group. Fixed in kernel Kernel 5.2: 05.27.23 Kernel 5.3: 05.36.23 Kernel 5.4: 05.44.23 Kernel 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022051

Reference

https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2022051