Amd: >> Epyc 7662 Firmware Security Vulnerabilities
Insufficient bound checks in the SMU may allow an attacker to update the from/to address space to an invalid value potentially resulting in a denial of service.
CVSS Score
7.5
EPSS Score
0.002
Published
2023-01-11
Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.0
Published
2023-01-11
Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.
CVSS Score
7.1
EPSS Score
0.001
Published
2023-01-11
Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
CVSS Score
6.5
EPSS Score
0.001
Published
2023-01-11
Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.001
Published
2023-01-11
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