CVE-2022-23821

CVE-2022-23821 describes an improper access control in AMD System Management Mode (SMM) that could allow an attacker to write to SPI ROM and potentially achieve arbitrary code execution. Connected sources indicate this affects AMD ASP/SMM components and is mitigated by Platform Initialization (PI...

CVE-2023-20579

CVE-2023-20579 involves improper access control in the AMD SPI protection feature. A local Ring0 (kernel mode) user could bypass protections, potentially affecting integrity and availability. Connected documents confirm this is an AMD SPI protection flaw and cite multiple advisories (NVD, Red Hat...

CVE-2021-26346

CVE-2021-26346 affects AMD Secure Processor (ASP) bootloader: failure to validate the integer operand can enable an integer overflow in the L2 directory table in SPI flash, leading to potential denial of service. Affected by several AMD/industry advisories; mitigation requires firmware/BIOS updat...

CVE-2020-12930

CVE-2020-12930 is an AMD ASP/PSP driver vulnerability described as improper parameter handling that could allow a privileged attacker to elevate privileges, potentially compromising integrity. The AMD security bulletin AMD-SB-5001 maps this CVE to various AMD Embedded/ Ryzen platforms and provide...

CVE-2021-26393

CVE-2021-26393 describes insufficient memory cleanup in the AMD Secure Processor (ASP) TEE, which could allow an authenticated user with privileges to generate a valid signed TA and potentially poison process memory, leading to confidentiality loss. The connected AMD security bulletin (AMD-SB-500...

CVE-2023-20521

CVE-2023-20521 describes a TOCTOU flaw in the AMD ASP Bootloader that could let an attacker with physical access tamper SPI ROM records after memory verification, risking confidentiality loss and potential DoS. Connected sources (SUSE kernel-firmware updates and AMD/SUSe advisories) confirm this ...

CVE-2023-20555

CVE-2023-20555 is an AMD SMM memory corruption flaw due to insufficient input validation in CpmDisplayFeatureSmm, allowing an attacker to overwrite an arbitrary bit in an attacker-controlled pointer and potentially execute code in SMM. Connected sources indicate this affects AMD processors with S...

CVE-2021-26354

CVE-2021-26354 affects AMD’s ASP/Bootloader pathway (ASP/ABL) with Insufficient bounds checking that may allow a system call from a compromised ABL, initializing arbitrary memory to zero and potentially compromising integrity. The vulnerability is documented across multiple sources (NVD entry and...

CVE-2021-26371

The CVE-2021-26371 entry concerns AMD Secure Processor (ASP)/AMD System Management Unit (SMU) where a compromised ABL or UApp could trigger a SHA256 system call to the bootloader, potentially exposing ASP memory to userspace and causing information disclosure. Technical details from connected sou...

CVE-2020-12931

The CVE-2020-12931 issue affects the AMD Secure Processor (ASP) kernel, caused by improper parameter handling, enabling a privileged attacker to elevate privileges and potentially compromise integrity. AMD’s AMD-SB-5001 bulletin maps this vulnerability across ASP/PSP components (ASP kernel) and p...

CVE-2022-23820

CVE-2022-23820 corresponds to a vulnerability in AMD ASP/PSP/SMM handling where failure to validate the AMD SMM communication buffer could allow an attacker to corrupt SMRAM and achieve arbitrary code execution. Public details in AMD’s bulletin AMD-SB-5001 confirm the issue and map it to multiple...

CVE-2021-26392

CVE-2021-26392 involves insufficient verification of a missing size check in LoadModule, leading to an out-of-bounds write that could enable code execution in the OS/kernel via loading a malicious TA. AMD’s related bulletin (AMD-SB-5001) labels this CVE as Medium and provides mitigations through ...

CVE-2021-26367

CVE-2021-26367 describes a vulnerability where an attacker with local access could cause a misconfiguration of the Trusted Memory Regions (TMRs) on AMD platforms with AMD Secure Processor (ASP). The root cause is misconfiguration of TMR address ranges, potentially enabling an attacker to set an a...