CVE-2021-26316

CVE-2021-26316 describes a BIOS-level input/communication buffer validation flaw in AMD platforms that may allow a local attacker with low privileges to tamper BIOS buffers and trigger SMM (System Management Mode) arbitrary code execution. Connected sources confirm the root cause is inadequate va...

CVE-2021-26402: Out-of-bounds Write

Insufficient bounds checking in ASP AMD Secure Processor firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability...

CVE-2021-46791: Out-of-bounds Write

Insufficient input validation during parsing of the System Management Mode SMM binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement DRTM user application memory that may result in a potential denial of service...

CVE-2021-26316: Improper Input Validation

Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM System Management Mode arbitrary code execution...

AMD Server Vulnerabilities – January 2023

Bulletin ID: AMD-SB-1032 Potential Impact: Varies by CVE, see descriptions below Severity: Varies by CVE, see descriptions below Summary During security reviews in collaboration with Google, Microsoft, and Oracle, potential vulnerabilities in the AMD Secure Processor ASP, AMD System Management Un...

GSD-2022-1007813 KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format

KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.8 by commit...

OESA-2022-2122 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.CVE-2021-38578...

CVE-2022-30772

Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory. Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address could be used by malware to overwrit...

CVE-2022-30283

In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe module creates a working buffer for USB...

CVE-2022-32267

DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption a TOCTOU attack DMA transactions which are targeted at input buffers used for the software SMI handler used by the SmmResourceCheckDxe driver could cause SMRAM...

CVE-2022-30774

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used a TOCTOU attack DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checke...

CVE-2022-30283

In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe module creates a working buffer for USB...

CVE-2022-30283

In UsbCoreDxe, tampering with the contents of the USB working buffer using DMA while certain USB transactions are in process leads to a TOCTOU problem that could be used by an attacker to cause SMRAM corruption and escalation of privileges The UsbCoreDxe module creates a working buffer for USB...

CVE-2022-33982

DMA attacks on the parameter buffer used by the Int15ServiceSmm software SMI handler could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. DMA attacks on the parameter buffer used by the software SMI handler used by the driver Int15ServiceSmm could lead to a TOCTOU...

PT-2022-20308 · Insyde · Insydeh2O Uefi Firmware

Name of the Vulnerable Software and Affected Versions: InsydeH2O UEFI firmware versions prior to Kernel 5.2: 05.27.29 InsydeH2O UEFI firmware versions prior to Kernel 5.3: 05.36.25 InsydeH2O UEFI firmware versions prior to Kernel 5.4: 05.44.25 InsydeH2O UEFI firmware versions prior to Kernel 5.5:...

PT-2022-21192 · Insyde · Insydeh2O Uefi Firmware

Name of the Vulnerable Software and Affected Versions: InsydeH2O UEFI firmware versions prior to Kernel 5.2: 05.27.23 InsydeH2O UEFI firmware versions prior to Kernel 5.3: 05.36.23 InsydeH2O UEFI firmware versions prior to Kernel 5.4: 05.44.23 InsydeH2O UEFI firmware versions prior to Kernel 5.5:...

Multiple race conditions due to TOCTOU flaws in various UEFI Implementations

Overview Multiple Unified Extensible Firmware Interface UEFI implementations are vulnerable to code execution in System Management Mode SMM by an attacker who gains administrative privileges on the local machine. An attacker can corrupt the memory using Direct Memory Access DMA timing attacks tha...

Dell BIOS Buffer Overflow Vulnerability (CNVD-2023-08760)

Dell BIOS is embedded software on a small memory chip on the motherboard of a computer from Dell, U.S.A. A buffer overflow vulnerability exists in Dell BIOS, which can be exploited by a locally authenticated attacker to cause arbitrary writes during SMM by manipulating the SMI...

CVE-2022-32491

Dell Client BIOS contains a Buffer Overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by manipulating an SMI to cause an arbitrary write during SMM...

Buffer overflow

Dell Client BIOS contains a Buffer Overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by manipulating an SMI to cause an arbitrary write during SMM...