NetSight
medium6.7

CVE-2020-27339

In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt…

Impact

In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).

Affected products

VendorProductAffected versions
InsydeInsydeh2o
from 5.3 before 5.34.44
from 5.2 before 5.25.44
from 5.1 before 5.16.25
from 5.4 before 5.42.44
from 5.3 before 5.35.25
from 5.2 before 5.26.25
SiemensRuggedcom Apr1808 Firmware
All versions
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 Ipc477e Pro Firmware
All versions

Weakness classification

References