An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the AhciBusDxe 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.
References
Link | Resource |
---|---|
https://www.insyde.com/security-pledge | Vendor Advisory |
https://www.insyde.com/security-pledge/SA-2023008 | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2023-02-15 03:15
Updated : 2024-02-28 19:51
NVD link : CVE-2022-32476
Mitre link : CVE-2022-32476
CVE.ORG link : CVE-2022-32476
JSON object : View
Products Affected
insyde
- insydeh2o
CWE
CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition