Insyde InsydeH2O Improper Input Validation Vulnerability in UsbCoreDxe SMM Module Allowing Arbitrary Code Execution

A vulnerability has been identified in the UsbCoreDxe component of Insyde InsydeH2O versions 5.4 prior to 05.47.01, 5.5 prior to 05.55.01, 5.6 prior to 05.62.01, and 5.7 prior to 05.71.01. This vulnerability arises from improper input validation, which can be exploited to write arbitrary memory within SMRAM and execute arbitrary code at the SMM level.

Impact

Exploitation of this vulnerability allows for arbitrary code execution at the SMM level, with the potential to write arbitrary memory inside SMRAM.

Remediation

Users can upgrade to InsydeH2O versions 05.47.01, 05.55.01, 05.62.01, or 05.71.01 to address this vulnerability.