CVE-2020-27339

https://notcve.org/view.php?id=CVE-2020-27339

16 Jun 2021 — 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). En el kernel de Insyde InsydeH2O 5.x, algunos controladores SMM no validaban correctamente los parámetro... • https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf • CWE-20: Improper Input Validation •