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CVE-2021-45970
Published: Jan 5, 2022
Modified: Nov 4, 2025
PUBLISHED
Description
An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the status code saved at the CommBuffer+4 location).
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
https://www.insyde.com/security-pledge
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220216-0004/
x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
x_refsource_CONFIRM
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