Detections
Analytics
CVE-2020-27339
medium
Description
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).
References
https://www.insyde.com/security-pledge/SA-2021001
https://security.netapp.com/advisory/ntap-20220216-0005/
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf