CVE-2022-30772 - How Malicious Code Could Overwrite SMRAM or OS Kernel Memory via PnpSmm’s Function x52
*Discovered by Insyde engineering, patched in Insyde’s Kernel updates across multiple versions.*
Overview
CVE-2022-30772 is a serious vulnerability found in the PnpSmm driver, specifically
CVE-2022-30774 - Understanding the DMA TOCTOU Attack on Insyde PnpSmm Driver
In 2022, a serious vulnerability known as CVE-2022-30774 was discovered affecting Insyde’s PnpSmm driver. This bug is not just another buffer overflow or a
CVE-2022-32267 - How DMA Attacks Can Lead to SMRAM Corruption in SmmResourceCheckDxe
CVE-2022-32267 is a security vulnerability in certain Insyde BIOS platforms, specifically involving the SmmResourceCheckDxe driver. This vulnerability opens the door to a serious attack: DMA-based
CVE-2022-33984 - How a TOCTOU DMA Attack Could Corrupt SMRAM in SdMmcDevice SMI Handler
CVE-2022-33984 is a recently disclosed vulnerability that can be found in some firmware implementations. It primarily targets the SdMmcDevice software SMI handler, leveraging Direct Memory
CVE-2022-31243 - How DMA Attacks Can Corrupt SMRAM Via SMI Handler In FvbServicesRuntimeDxe
In May 2022, a critical firmware vulnerability (CVE-2022-31243) was disclosed, affecting systems using the FvbServicesRuntimeDxe UEFI driver. The flaw allows malicious actors to exploit Direct
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