CVE-2023-27373
CVSS 3.1 Score 5.5 of 10 (medium)
Details
Published Aug 7, 2023
Updated: Aug 15, 2023
CWE ID 20
Summary
CVE-2023-27373 is a vulnerability affecting Insyde's InsydeH2O software, specifically its kernel versions 5.0 through 5.5. This issue stems from inadequate input validation, which enables an attacker to manipulate a runtime-accessible EFI variable. By doing so, the attacker can induce a dynamic Base Address Register (BAR) setting overlap with SMRAM, potentially leading to unintended system behavior or memory corruption. The vulnerability poses a significant risk and necessitates prompt patching or mitigation measures.
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Affected Products
- InsydeH2O
Affected Vendors
- Insyde Software
Advisories, Assessments, and Mitigations
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