CVE-2023-22614

Name of the Vulnerable Software and Affected Versions InsydeH2O versions 5.0 through 5.5

Description The issue is related to insufficient input validation in BIOS Guard updates, which can lead to memory corruption in SMM. An attacker can exploit this by supplying malformed inputs to the BIOS Guard SMI handler, potentially causing damage to memory.

Recommendations For versions 5.0 through 5.5, consider restricting access to the BIOS Guard SMI handler to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid supplying malformed inputs to the BIOS Guard SMI handler. At the moment, there is no information about a newer version that contains a fix for this vulnerability.