AMD Ryzen™ Threadripper™ PRO Processors “Chagall” WS

• CVE-2021-46794 High 7.5 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 0.6%
• CVE-2021-46773 High 8.8 Insufficient input validation in ABL may enable a privileged attacker to corrupt ASP memory, potentially resulting in a loss of integrity or code execution. 0.8%
• CVE-2021-46755 High 7.5 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 po 0.6%
• CVE-2021-46749 High 7.5 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 0.6%
• CVE-2021-26371 Medium 5.5 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. 0.2%
• CVE-2021-26356 High 7.4 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. 0.4%
• CVE-2021-26354 Medium 5.5 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 0.2%