Insyde's Security Pledge
Insyde Security Advisory 2022008
|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 corresponds to CVE-2021-42113. It affects the StorageSecurityCommandDxe driver. It was discovered by the Binarly efiXplorer team. It is fixed in the InsydeH2O kernel: Kernel 5.1: 05.14.34, Kernel 5.2: 05.24.34, Kernel 5.3: 05.33.34, Kernel 5.4: unaffected. Kernel 5.5: unaffected.
Insyde Software would like to thank Binarly for reporting this issue.