An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FwBlockServiceSmm 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-2023002 | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2023-02-15T00:00:00
Updated: 2023-02-15T00:00:00
Reserved: 2022-06-06T00:00:00
Link: CVE-2022-32470
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-02-15T03:15:09.920
Modified: 2023-02-23T18:18:57.550
Link: CVE-2022-32470
JSON object: View
Redhat Information
No data.
CWE