An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the IdeBusDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2023-02-15T00:00:00
Updated: 2024-08-03T07:39:51.064Z
Reserved: 2022-06-06T00:00:00
Link: CVE-2022-32478
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-02-15T02:15:09.813
Modified: 2024-11-21T07:06:24.737
Link: CVE-2022-32478
Redhat
No data.