CVE-2022-32475
High
Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe 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 issue was fixed in the kernel, which also protected chipset and OEM chipset code.
SeverityHigh
CVSS7.0
Exploit probability—
ProductInsydeh2o
PublishedFeb 15, 2023
First seenFeb 15, 2023
Weakness typeCWE-367CWE-367
How to fix
Update
- insyde insydeh2o5.2.05.27.27, 5.3.05.36.27, 5.4.05.44.27, 5.5.05.52.27 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.0 ≤ v < 5.2.05.27.27, 5.3 ≤ v < 5.3.05.36.27, 5.4 ≤ v < 5.4.05.44.27, 5.5 ≤ v < 5.5.05.52.27 | 5.2.05.27.27, 5.3.05.36.27, 5.4.05.44.27, 5.5.05.52.27 |
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