CVE-2022-31243
Description
Update description and links DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption through a TOCTOU attack.. "DMA transactions which are targeted at input buffers used for the software SMI handler used by the FvbServicesRuntimeDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in Kernel 5.2: 05.27.21. Kernel 5.3: 05.36.21. Kernel 5.4: 05.44.21. Kernel 5.5: 05.52.21 https://www.insyde.com/security-pledge/SA-2022044
How to fix
- insyde kernel5.2.05.27.21, 5.3.05.36.21, 5.4.05.44.21, 5.5.05.52.21 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde kernel | 5.2 ≤ v < 5.2.05.27.21, 5.3 ≤ v < 5.3.05.36.21, 5.4 ≤ v < 5.4.05.44.21, 5.5 ≤ v < 5.5.05.52.21 | 5.2.05.27.21, 5.3.05.36.21, 5.4.05.44.21, 5.5.05.52.21 |
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