CVE-2023-20524

CVE-2023-20524 affects the AMD Secure Processor (ASP) and AMD System Management Unit (SMU). The vulnerability description states that a compromised ASP could send malformed commands to an ASP on another CPU, causing an out-of-bounds write and potentially a loss of integrity. Public references in ...

CVE-2023-20520

Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution...

CVE-2023-20524

An attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out of bounds write, potentially leading to a loss a loss of integrity...

CVE-2023-20524

An attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out of bounds write, potentially leading to a loss a loss of integrity...

CVE-2021-46769

CVE-2021-46769 affects the AMD ASP bootloader (ASP) and allows a privileged attacker to trigger insufficient syscall input validation to perform arbitrary DMA copies, potentially leading to code execution. The AMD AMD-SB-3001 bulletin summarizes the impact as high for this CVE and links remediati...

CVE-2021-46769

Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code execution...

CVE-2021-46792: Time-of-check Time-of-use (TOCTOU) Race Condition

Time-of-check Time-of-use TOCTOU in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of service...

CVE-2021-46765: Out-of-bounds Read

Insufficient input validation in ASP may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP, potentially leading to a denial of service...

CVE-2021-46755: Undefined Security Weakness

Failure to unmap certain SysHub mappings in error paths of the ASP AMD Secure Processor bootloader may allow an attacker with a malicious bootloader to exhaust the SysHub resources resulting in a potential denial of service...

CVE-2021-46756: Improper Input Validation

Insufficient validation of inputs in SVCMAPUSERSTACK in the ASP AMD Secure Processor bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of integrity...

CVE-2021-26356: Time-of-check Time-of-use (TOCTOU) Race Condition

A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure...

CVE-2021-26354: Buffer Copy without Checking Size of Input

Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss of integrity...

CVE-2023-20524: Out-of-bounds Write

An attacker with a compromised ASP could possibly send malformed commands to an ASP on another CPU, resulting in an out of bounds write, potentially leading to a loss a loss of integrity...

PT-2023-12570

Name of the Vulnerable Software and Affected Versions AMD Secure Processor affected versions not specified Description The issue is related to the failure to unmap certain SysHub mappings in error paths of the ASP bootloader, which may allow an attacker with a malicious bootloader to exhaust the...

PT-2023-12579

Name of the Vulnerable Software and Affected Versions ASP affected versions not specified Description The issue is related to insufficient input validation in ASP, which may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP. This could potentially lead t...

PT-2023-12586

Name of the Vulnerable Software and Affected Versions ASP bootloader affected versions not specified Description The issue is related to a Time-of-check Time-of-use TOCTOU condition in the BIOS2PSP command. This may allow an attacker with a malicious BIOS to create a race condition, causing the A...

CVE-2021-46794: Out-of-bounds Read

Insufficient bounds checking in ASP AMD Secure Processor may allow for an out of bounds read in SMI System Management Interface mailbox checksum calculation triggering a data abort, resulting in a potential denial of service...

PT-2023-12093 · Amd · 1St Gen Amd Epyc™ Processors +110

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace,...

CVE-2023-20520: Out-of-bounds Write

Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution...

CVE-2021-46769: Improper Input Validation

Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code execution...