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PRIOn knowledge basePRION:CVE-2022-32953HistoryFeb 15, 2023 - 3:15 a.m.
Race condition
2023-02-1503:15:00
PRIOn knowledge base
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1
insydeh2o
kernel 5.0
kernel 5.5
dma attacks
sdhostdriver
smm
non-smm code
toctou
race-condition
smram
privilege escalation
iommu protection
acpi runtime memory
command buffer
buffer overflow
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the SdHostDriver 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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| insydeh2o | ge | 5.5 | |
| insydeh2o | lt | 5.5.05.52.27 | |
| insydeh2o | ge | 5.4 | |
| insydeh2o | lt | 5.4.05.44.27 | |
| insydeh2o | ge | 5.3 | |
| insydeh2o | lt | 5.3.05.36.27 | |
| insydeh2o | ge | 5.0 | |
| insydeh2o | lt | 5.2.05.27.27 |
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