#VU80876 Input validation error in InsydeH2O Kernel - CVE-2023-27373
Published: September 19, 2023
Vulnerability identifier: #VU80876
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-27373
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
InsydeH2O Kernel
InsydeH2O Kernel
Software vendor:
Insyde Software
Insyde Software
Description
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input. A local user can tamper with a runtime-accessible EFI variable and cause a dynamic BAR setting to overlap SMRAM.
Remediation
Install updates from vendor's website.