An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://www.insyde.com/security-pledge | vendor advisory |
| https://www.insyde.com/security-pledge/SA-2022020 | vendor advisory |
| https://security.netapp.com/advisory/ntap-20220217-0016/ | third party advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | third party advisory |