Amd: >> Ryzen Threadripper 2950x Firmware Security Vulnerabilities
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
CVSS Score
5.5
EPSS Score
0.0
Published
2022-11-09
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
CVSS Score
5.6
EPSS Score
0.001
Published
2022-08-10
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure.
CVSS Score
6.5
EPSS Score
0.001
Published
2022-07-14
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
CVSS Score
6.5
EPSS Score
0.014
Published
2022-07-12
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
CVSS Score
6.5
EPSS Score
0.007
Published
2022-06-15
Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.002
Published
2022-05-12
Insufficient check of the process type in Trusted OS (TOS) may allow an attacker with privileges to enable a lesser privileged process to unmap memory owned by a higher privileged process resulting in a denial of service.
CVSS Score
4.4
EPSS Score
0.0
Published
2022-05-12
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call to the Stage 2 Bootloader potentially leading to corrupt memory and code execution.
CVSS Score
7.8
EPSS Score
0.001
Published
2022-05-12
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.
CVSS Score
5.5
EPSS Score
0.0
Published
2022-05-12
An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of system integrity.
CVSS Score
7.1
EPSS Score
0.001
Published
2022-05-12