An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the NvmExpressDxe 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.
References
Link | Resource |
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https://www.insyde.com/security-pledge | Vendor Advisory |
https://www.insyde.com/security-pledge/SA-2023015 | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
23 Feb 2023, 18:19
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2023-02-15 02:15
Updated : 2024-02-04 23:14
NVD link : CVE-2022-32955
Mitre link : CVE-2022-32955
CVE.ORG link : CVE-2022-32955
JSON object : View
Products Affected
insyde
- insydeh2o
CWE
CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition