Insyde's Security Pledge
Insyde Security Advisory 2022054
| Insyde ID | Advisory Category | Impact of Vulnerability | Severity Rating | Original Date | Last Revised |
| INSYDE-SA-2022054 | Software | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | 7.8 | 11/08/2022 | 11/08/2022 |
Summary:
DMA transactions which are targeted at input buffers used for the SdMmcDevice software SMI handler could cause SMRAM corruption through a TOCTOU attack.
Vulnerability Details
DMA transactions which are targeted at input buffers used for the software SMI handler used by the SdMmcDevice driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. This was fixed in:
Kernel 5.2: 05.27.25
Kernel 5.3: 05.36.25
Kernel 5.4: 05.44.25
Kernel 5.5: 05.52.25
Revision History:
| Revision | Date | Description |
| 1.0 | 11/08/2022 | Initial Release |
| - | - | - |