NetSight
high8.2

CVE-2021-41838

An issue was discovered in SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O.

Impact

An issue was discovered in SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of a Numeric Range Comparison Without a Minimum Check.

Affected products

VendorProductAffected versions
InsydeInsydeh2o
from 5.1 before 5.16.42
from 5.2 before 5.26.42
from 5.3 before 5.35.42
from 5.4 before 5.43.42
from 5.5 before 5.51.42
SiemensSimatic Field Pg M5 Firmware
All versions
SiemensSimatic Field Pg M6 Firmware
All versions
SiemensSimatic Ipc127e Firmware
All versions
SiemensSimatic Ipc227g Firmware
All versions
SiemensSimatic Ipc277g Firmware
All versions
SiemensSimatic Ipc327g Firmware
All versions
SiemensSimatic Ipc377g Firmware
All versions
SiemensSimatic Ipc427e Firmware
All versions
SiemensSimatic Ipc477e Firmware
All versions
SiemensSimatic Ipc627e Firmware
All versions
SiemensSimatic Ipc647e Firmware
All versions

Weakness classification

References