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high8.2

CVE-2021-45971

An issue was discovered in SdHostDriver in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and…

Impact

An issue was discovered in SdHostDriver in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (CommBufferData).

Affected products

VendorProductAffected versions
InsydeInsydeh2o
from 5.1 before 5.16.25
from 5.2 before 5.26.25
from 5.3 before 5.35.25
from 5.4 before 5.43.25
from 5.5 before 05.51.25

Weakness classification

CWE-787

References