Insyde's Security Pledge
Insyde Security Advisory 2023010
| Insyde ID | Advisory Category | Impact of Vulnerability | Severity Rating | Original Date | Last Revised |
| INSYDE-SA-2023010 | Software | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | 7.5 | 02/14/2023 | 02/14/2023 |
Summary:
DMA attacks on the IdeBusDxe 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 IdeBusDxe 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: Not affected
CWE-367
Revision History:
| Revision | Date | Description |
| 1.0 | 02/14/2023 | Initial Release |
| -- | -- | -- |