| Package | Affected versions | Patched versions |
|---|---|---|
| insydeh2o | ≥ 5.1, < 5.16.25≥ 5.2, < 5.26.25≥ 5.3, < 5.35.25≥ 5.4, < 5.43.25≥ 5.5, < 05.51.25 | 5.16.255.26.255.35.255.43.2505.51.25 |
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).
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