Amd: >> Epyc 7003 Firmware Security Vulnerabilities
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
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
CVSS Score
6.5
EPSS Score
0.001
Published
2022-05-11
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.
CVSS Score
5.5
EPSS Score
0.001
Published
2022-02-04
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16
AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.0
Published
2021-11-16
Improper input and range checking in the AMD Secure Processor (ASP) boot loader image header may allow an attacker to use attacker-controlled values prior to signature validation potentially resulting in arbitrary code execution.
CVSS Score
7.8
EPSS Score
0.001
Published
2021-11-16
Insufficient bounds checking in System Management Unit (SMU) may cause invalid memory accesses/updates that could result in SMU hang and subsequent failure to service any further requests from other components.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16
Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA read from invalid DRAM address to SRAM resulting in SMU not servicing further requests.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16
Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Management Mode) operations.
CVSS Score
7.0
EPSS Score
0.001
Published
2021-11-16
A side effect of an integrated chipset option may be able to be used by an attacker to bypass SPI ROM protections, allowing unauthorized SPI ROM modification.
CVSS Score
5.5
EPSS Score
0.001
Published
2021-11-16