Insyde's Security Pledge
Insyde Security Advisory 2022033
| Insyde ID | Advisory Category | Impact of Vulnerability | Severity Rating | Original Date | Last Revised |
| INSYDE-SA-2022033 | Software | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | 8.2 | 09/21/2022 | 09/21/2022 |
Summary:
SMM memory corruption vulnerability in SMM driver (SMRAM write) in InsydeH2O
Vulnerability Details
This affects the FwBlockServiceSmm driver of InsydeH2O. This issue was discovered by the Binarly efiXplorer team. This issue is fixed in InsydeH2O, versions:
Kernel 5.0 (issue IB02961492 in version 05.09.37)
Kernel 5.1 (issue IB02961492 in version 05.17.37)
Kernel 5.2 (issue IB02961492 in version 05.27.29)
Kernel 5.3 (issue IB02961492 in version 05.36.29)
Kernel 5.4 (issue IB02961492 in version 05.44.29)
Kernel 5.5 (issue IB02961492 in version 05.52.29)
Acknowledgements
Insyde Software would like to thank Binarly for reporting this issue.
Revision History:
| Revision | Date | Description |
| 1.0 | 09/21/2022 | Initial Release |
| - | - | - |