An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 5.5. DMA attacks on the SdMmcDevice 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 by using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the link data to SMRAM before checking it and verifying that all pointers are within the buffer.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2023-02-15T00:00:00
Updated: 2024-08-03T07:54:03.405Z
Reserved: 2022-06-10T00:00:00
Link: CVE-2022-32954
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-02-15T02:15:09.883
Modified: 2024-11-21T07:07:18.293
Link: CVE-2022-32954
Redhat
No data.