Insyde's Security Pledge
Recent Security Advisories
INSYDE-SA-2022008
Product
CVSS Score
Original Date
Last Revised
InsydeH2O
8.2
2022-02-01
Summary
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.
Vulnerability Details
CVSS Vector: AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
This corresponds to CVE-2021-42113. It affects the StorageSecurityCommandDxe driver. It was discovered by the Binarly efiXplorer team.
Solution Information
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.
Acknowledgements
Insyde Software would like to thank Binarly for reporting this issue.
Revision History
Revision #
Date
Description
1
2022-02-01
Initial Release