CVE-2023-20569

CVE-2023-20569 concerns a side-channel vulnerability in some AMD CPUs where an attacker may influence the return-address predictor, enabling speculative execution at attacker-controlled addresses and potential information disclosure. The vulnerability is discussed across multiple connected source...

CVE-2021-26339

Technical details are not publicly available in the provided documents for CVE-2021-26339. Monitor for updates from vendor advisories; no specific affected products, impact, or remediation details are present in the supplied materials.

CVE-2023-20558

CVE-2023-20558 involves AMD Secure Processor/SMU SMM code. The root cause is insufficient control flow management in AmdCpmOemSmm, which could allow a privileged attacker to tamper with the SMM handler and escalate privileges. Affected software/hardware: AMD Ryzen 2000 series desktop processors (...

CVE-2021-26382

CVE-2021-26382 affects AMD ACP firmware image validation: an attacker with root privileges can load any legitimately signed firmware image into the Audio Co-Processor, bypassing key restrictions and potentially causing a denial of service. Affected platforms span AMD Ryzen desktop/mobile families...

CVE-2021-26388

CVE-2021-26388 matches the initial description: improper validation of the BIOS directory can cause reads beyond the RAM directory table, exposing out-of-bounds memory and potentially causing a denial of service. Connected advisories (SUSE-SU-2022:1840-1, 1846-1, 1847-1) reference this CVE as par...

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-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-2021-26384

CVE-2021-26384 is a vulnerability described as a malformed System Management Interface (SMI) command that can corrupt the SMI Trigger Info data structure, potentially enabling out-of-bounds memory reads/writes when an SMI is triggered. The AMD ADM/AMD-SB-1027 bulletin lists this CVE among others ...

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-2023-20596

CVE-2023-20596 involves improper input validation in the AMD SMM Supervisor. A compromised SMI handler could gain Ring0 and potentially execute arbitrary code. Documents show affected AMD platforms across Desktop, Mobile, and Embedded lines, with mitigations delivered via OEM firmware updates (e....

CVE-2023-20571

CVE-2023-20571 describes a race condition in AMD System Management Mode (SMM) code that, if exploited by a compromised user-space process, could facilitate privilege escalation by leveraging CVE-2018-8897. The connected AMD advisories confirm this issue under AMD SB-5001/AMD SB-4002 families with...

CVE-2023-20563

CVE-2023-20563 is a documented AMD/PI firmware vulnerability affecting System Management Mode (SMM) with local privilege escalation potential. The Connected AMD bulletin entries (AMD-SB-5001 and AMD-SB-4002) describe multiple affected AMD embedded platforms and indicate mitigations via Platform I...

CVE-2023-20559

The CVE-2023-20559 entry concerns AMD Ryzen 2000-series CPUs with a vulnerability in the System Management Mode (SMM) component. Specifically, insufficient control flow management in AmdCpmGpioInitSmm could allow a privileged attacker to tamper with the SMM handler, potentially leading to privile...

CVE-2021-46758

CVE-2021-46758 involves insufficient validation of SPI flash addresses in the AMD Secure Processor (ASP) bootloader. The issue may allow an attacker to read data mapped beyond SPI flash, potentially impacting availability and integrity. Related documents confirm the vulnerability in ASP bootloade...

CVE-2023-20565

CVE-2023-20565 is documented in AMD’s embedded/PI firmware advisories (AMD-SB-5001 and related) as a high-severity issue where insufficient protections in System Management Mode (SMM) could allow privilege escalation via local access. The connected AMD bulletin provides mitigations via Platform I...