Insyde's Security Pledge
Insyde Security Advisory 2022016
|Insyde ID||Advisory Category||Impact of Vulnerability||Severity Rating||Original Date||Last Revised|
SMM callout vulnerability allowing a possible attacker to hijack execution flow of a code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.
This issue corresponds to CVE-2021-43323. It affects the UsbCoreDxe driver. It was reported by the Binarly efiXplorer team. The fixes are available for the Insyde kernel: Kernel 5.0: 05.08.45, Kernel 5.1: 05.16.45, Kernel 5.2: 05.26.45, Kernel 5.3: 05.35.45, Kernel 5.4: 05.43.45, Kernel 5.5: 05.51.45.
Insyde Software would like to thank Binarly for reporting this issue.