Siemens InsydeH2O Arbitrary Code Execution (CVE-2022-36338)

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then...

CVE-2022-36338

CVE-2022-36338 (Siemens InsydeH2O) affects InsydeH2O BIOS/firmware (kernel 5.0–5.5). The issue is an SMM callout vulnerability in the SMM driver FwBlockServiceSmm that creates SMM and allows arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with ma...

CVE-2022-36338

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then...