CVSS: 5.5EPSS: 0%CPEs: 256EXPL: 0CVE-2021-26371
https://notcve.org/view.php?id=CVE-2021-26371
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, potentially leading to information disclosure. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 •
CVSS: 8.2EPSS: 0%CPEs: 108EXPL: 0CVE-2021-26365
https://notcve.org/view.php?id=CVE-2021-26365
Certain size values in firmware binary headers could trigger out of bounds reads during signature validation, leading to denial of service or potentially limited leakage of information about out-of-bounds memory contents. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 • CWE-125: Out-of-bounds Read •
CVSS: 7.4EPSS: 0%CPEs: 196EXPL: 0CVE-2021-26356
https://notcve.org/view.php?id=CVE-2021-26356
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. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 5.5EPSS: 0%CPEs: 304EXPL: 0CVE-2021-26354
https://notcve.org/view.php?id=CVE-2021-26354
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. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.5EPSS: 0%CPEs: 208EXPL: 0CVE-2021-26346
https://notcve.org/view.php?id=CVE-2021-26346
Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service. No validar el operando entero en el cargador de arranque ASP (AMD Secure Processor) puede permitir que un atacante introduzca un desbordamiento de enteros en la tabla del directorio L2 en SPI flash, lo que resulta en una posible denegación de servicio. • https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031 • CWE-190: Integer Overflow or Wraparound •