Insyde Security Advisory 2022009

Insyde ID Advisory Category Impact of Vulnerability Severity Rating Original Date Last Revised
INSYDE-SA-2022009 Software AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H 7.5 02/01/2022 02/01/2022

Summary:

SMM memory corruption vulnerability allowing a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Vulnerability Details

CVE-2021-43522

This issue corresponds to CVE-2021-43522. It affects the AhciBusDxe driver. It was reported by the Binarly efiXplorer team. Fixes were incorporated in Kernel 5.1: 05.14.34, Kernel 5.2: 05.24.34, Kernel 5.3: 05.33.34, Kernel 5.4/5.5: Unaffected.

Acknowledgements:

Insyde Software would like to thank Binarly for reporting this issue.

Revision History:

Revision Date Description
1.0 02/01/2022 Initial Release
- - -

Return to Insyde's Security Pledge