CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 1CVE-2023-22616
https://notcve.org/view.php?id=CVE-2023-22616
An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM. • https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2023022 • CWE-610: Externally Controlled Reference to a Resource in Another Sphere •
CVSS: 8.8EPSS: 0%CPEs: 6EXPL: 0CVE-2023-22612
https://notcve.org/view.php?id=CVE-2023-22612
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. A malicious host OS can invoke an Insyde SMI handler with malformed arguments, resulting in memory corruption in SMM. • https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2023019 • CWE-787: Out-of-bounds Write •
CVSS: 7.0EPSS: 0%CPEs: 4EXPL: 0CVE-2022-32469
https://notcve.org/view.php?id=CVE-2022-32469
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the PnpSmm shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it. • https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2023001 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 7.0EPSS: 0%CPEs: 4EXPL: 0CVE-2022-32470
https://notcve.org/view.php?id=CVE-2022-32470
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FwBlockServiceSmm shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it. • https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2023002 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 7.0EPSS: 0%CPEs: 4EXPL: 0CVE-2022-32471
https://notcve.org/view.php?id=CVE-2022-32471
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges. • https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2023003 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •