CVE-2022-33907

CVE-2022-33907 describes a TOCTOU vulnerability in the SMI handler input buffers of the InsydeH2O IdeBusDxe driver. DMA accesses targeting these buffers could lead to SMRAM corruption. The issue is recorded with a base CVSSv3.1 base score of 6.4 (LOCAL, HIGH complexity, HIGH privileges required) ...

CVE-2022-33905

CVE-2022-33905 describes a TOCTOU vulnerability in the AhciBusDxe driver’s SMI input buffers, where DMA targeting those buffers could cause SMRAM corruption. The issue, attributed to Insyde engineering with Intel’s iSTARE context, is fixed in Linux kernels: 5.2 (05.27.23), 5.3 (05.36.23), 5.4 (05...

CVE-2022-30774

CVE-2022-30774 describes a TOCTOU vulnerability in the parameter buffer used by the PnpSmm driver, enabling DMA to modify contents after parameter values are checked but before use. Documented for Siemens RuggedCom APE1808 products with InsydeH2O UEFI firmware, the CVSS base score is 6.4 (AV:L/AC...

CVE-2022-33985

The CVE-2022-33985 issue affects the NvmExpressDxe driver’s SMI input buffers. It enables a TOCTOU vulnerability that can lead to SMRAM corruption via DMA targeted at the SMI handler input buffers. The problem is fixed in kernel updates: 5.2 (05.27.25), 5.3 (05.36.25), 5.4 (05.44.25), and 5.5 (05...

CVE-2022-33909

CVE-2022-33909 is a TOCTOU-related DMA vulnerability affecting the HddPassword SMI handler in InsydeH2O firmware. The issue arises from DMA transactions targeting input buffers used by the software SMI handler, potentially allowing SMRAM corruption. Public documentation confirms a fix was applied...

CVE-2022-33986

CVE-2022-33986 concerns DMA attacks on the parameter buffer used by the InsydeH2O/VariableRuntimeDxe SMI handler, potentially enabling a TOCTOU attack and SMRAM corruption. Public sources specify the vulnerable component as the VariableRuntimeDxe driver’s SMI handler parameter buffer, with exploi...

CVE-2022-33908

CVE-2022-33908 affects the SdHostDriver SMI handler: DMA targeted at input buffers can cause SMRAM corruption via a TOCTOU race condition. The issue is caused by TOCTOU in DMA handling of the SdHostDriver software SMI input buffers. Affected software/hardware is described in the Siemens/Insyde ma...

CVE-2022-33984

The CVE-2022-33984 entry describes a TOCTOU DMA vulnerability affecting the SdMmcDevice SMI handler that can corrupt SMRAM. Connected sources expand to multiple TOCTOU flaws in Insyde-managed firmware (various SMI handlers such as SdHostDriver, FvbServicesRuntimeDxe, IdeBusDxe) with CVEs 2022-307...

CVE-2022-33983

CVE-2022-33983 describes a TOCTOU DMA attack affecting the NvmExpressLegacy SMI handler used by the NvmExpressLegacy driver, potentially enabling SMRAM corruption. The issue is triggered by DMA transactions targeting input buffers for the software SMI handler, with the root cause tied to TOCTOU c...

CVE-2022-31243

CVE-2022-31243 describes a TOCTOU race condition affecting the FvbServicesRuntimeDxe driver, where DMA transactions targeting input buffers used by the software SMI handler could cause SMRAM corruption. The issue is part of a broader family of TOCTOU vulnerabilities (multiple CVEs) related to Ins...

CVE-2022-32267

CVE-2022-32267 concerns DMA targeting input buffers used by the SmmResourceCheckDxe SMI handler in InsydeH2O UEFI firmware, leading to SMRAM corruption via a TOCTOU vulnerability. The issue, discovered by Insyde engineering, is mitigated by kernel updates: Kernel 5.2 (05.27.23), 5.3 (05.36.23), 5...

Intel Confirms Leak of Alder Lake BIOS Source Code

Chipmaker Intel has confirmed that proprietary source code related to its Alder Lake CPUs has been leaked, following its release by an unknown third-party on 4chan and GitHub last week. The published content contains Unified Extensible Firmware Interface UEFI code for Alder Lake, the company's 12...

CVE-2022-36448

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. There is an SMM memory corruption vulnerability in the Software SMI handler in the PnpSmm driver...

CVE-2022-36448

CVE-2022-36448 affects Insyde InsydeH2O BIOS (kernel 5.0–5.5). The issue is an SMM memory corruption in the Software SMI handler of the PnpSmm driver, as documented by Red Hat, Tenable OT plugin, PT-SECURITY, CVE CVSS metrics show high impact (C/H/I/A) with local access, low attack complexity, no...

CVE-2022-35893

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM memory corruption vulnerability in the FvbServicesRuntimeDxe driver allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM...

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-2022-35893

The CVE-2022-35893 issue affects Insyde InsydeH2O (kernel 5.0–5.5). A memory corruption fault in the FvbServicesRuntimeDxe driver permits writes to SMRAM, enabling escalation to SMM. Public details indicate the vulnerability resides in InsydeH2O and is associated with SMM memory corruption, with ...

Insyde InsydeH2O 安全漏洞

Insyde InsydeH2O is a C-language source from Insyde Corporation of Taiwan, which implements the new technology "EFI/UEFI" specification designed to replace the traditional BIOS Basic Input/Output System. A security vulnerability exists in the Insyde InsydeH2O kernel versions 5.0 to 5.5, which ste...

CVE-2022-35893: Improper Input Validation

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM memory corruption vulnerability in the FvbServicesRuntimeDxe driver allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM...

CVE-2022-35894

CVE-2022-35894 affects Insyde InsydeH2O BIOS (kernel versions 5.0–5.5). The vulnerability stems from the SMI handler for the FwBlockServiceSmm driver using an untrusted pointer as the destination to copy data, enabling information disclosure to an attacker-controlled buffer. Public sources consis...