CVE-2022-33984
Description
DMA transactions which are targeted at input buffers used for the SdMmcDevice software SMI handler 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 SdMmcDevice driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. This was fixed in kernel 5.2: 05.27.25, kernel 5.3: 05.36.25, kernel 5.4: 05.44.25, kernel 5.5: 05.52.25 https://www.insyde.com/security-pledge/SA-2022054
How to fix
- insyde kernel5.2.05.27.25, 5.3.05.36.25, 5.4.05.44.25, 5.5.05.52.25 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde kernel | 5.2 ≤ v < 5.2.05.27.25, 5.3 ≤ v < 5.3.05.36.25, 5.4 ≤ v < 5.4.05.44.25, 5.5 ≤ v < 5.5.05.52.25 | 5.2.05.27.25, 5.3.05.36.25, 5.4.05.44.25, 5.5.05.52.25 |
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