Insyde's Security Pledge
Insyde Security Advisory 2023014
| Insyde ID | Advisory Category | Impact of Vulnerability | Severity Rating | Original Date | Last Revised |
| INSYDE-SA-2023014 | Software | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | 7.8 | 02/14/2023 | 02/14/2023 |
Summary:
DMA attacks on the SdMmcDevice shared buffer used by SMM and non-SMM code could cause TOCTOU issues which could lead to corruption of SMRAM and escalation of privileges.
Vulnerability Details
DMA attacks on the SdMmcDevice shared buffer used by SMM and non-SMM code could cause TOCTOU issues which could lead to corruption of SMRAM and escalation of privileges. This issue was discovered by Insyde engineering. This issue was fixed in the kernel versions below:
Kernel 5.0: 05.09.42
Kernel 5.1: 05.17.42
Kernel 5.2: 05.27.38
Kernel 5.3: 05.36.38
Kernel 5.4: 05.44.38
Kernel 5.5: 05.52.38
CWE-367
Revision History:
| Revision | Date | Description |
| 1.0 | 02/14/2023 | Initial Release |
| -- | -- | -- |