CVE-2022-32471
High
Description
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.
SeverityHigh
CVSS7.0
Exploit probability—
ProductInsydeh2o
PublishedFeb 15, 2023
First seenFeb 15, 2023
Weakness typeCWE-367CWE-367
How to fix
Update
- insyde insydeh2o5.2.05.27.37, 5.3.05.36.37, 5.4.05.44.45, 5.5.05.52.45 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.0 ≤ v < 5.2.05.27.37, 5.3 ≤ v < 5.3.05.36.37, 5.4 ≤ v < 5.4.05.44.45, 5.5 ≤ v < 5.5.05.52.45 | 5.2.05.27.37, 5.3.05.36.37, 5.4.05.44.45, 5.5.05.52.45 |
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