Detections
Analytics
CVE-2021-33627
high
Description
An issue was discovered in Insyde InsydeH2O 5.x, affecting FwBlockServiceSmm. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses
References
https://www.insyde.com/security-pledge/SA-2022022
https://www.insyde.com/security-pledge
https://security.netapp.com/advisory/ntap-20220222-0002/
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf