Epyc 73F3 Firmware Security Vulnerabilities - CVSS Score 5 - 6
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.
5.5CVSS
5.9AI Score
0.0004EPSS
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 l...
5.5CVSS
5AI Score
0.0004EPSS
Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.
5.5CVSS
5.8AI Score
0.0004EPSS
Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP
5.5CVSS
5.8AI Score
0.0004EPSS
Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.
5.5CVSS
5.5AI Score
0.0004EPSS
Insufficient input validation in the SNP_GUEST_REQUEST command may lead to a potential data abort error and a denial of service.
5.5CVSS
6AI Score
0.0004EPSS
Insufficient validation of guest context in the SNP Firmware could lead to a potential loss of guest confidentiality.
5.5CVSS
5.9AI Score
0.0004EPSS
AMD System Management Unit (SMU) may experience an integer overflow when an invalid length is provided which may result in a potential loss of resources.
5.5CVSS
6.1AI Score
0.0004EPSS
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
5.5CVSS
6.1AI Score
0.0004EPSS
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.
5.5CVSS
6.3AI Score
0.0004EPSS
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.
5.5CVSS
6.2AI Score
0.0004EPSS
A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.
5.5CVSS
5.9AI Score
0.0004EPSS
Insufficient validation in ASP BIOS and DRTM commands may allow malicious supervisor x86 software to disclose the contents of sensitive memory which may result in information disclosure.
5.5CVSS
6AI Score
0.0004EPSS
Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.
5.5CVSS
5.8AI Score
0.0004EPSS
Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent (MA).
5.5CVSS
5.8AI Score
0.0004EPSS
Insufficient bounds checking in ASP may allow anattacker to issue a system call from a compromised ABL which may causearbitrary memory values to be initialized to zero, potentially leading to aloss of integrity.
5.5CVSS
7.2AI Score
0.0004EPSS
Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service.
5.5CVSS
6.1AI Score
0.0004EPSS
Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which could result in an exception handling leading to a potential denial of service.
5.5CVSS
5.7AI Score
0.0004EPSS
A compromised or malicious ABL or UApp couldsend a SHA256 system call to the bootloader, which may result in exposure ofASP memory to userspace, potentially leading to information disclosure.
5.5CVSS
7.1AI Score
0.0004EPSS
Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.
5.5CVSS
5.8AI Score
0.0004EPSS
Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of resources and/or possibly denial of service.
5.5CVSS
5.9AI Score
0.0004EPSS
Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in access/updates from/to invalid address space that could result in denial of service.
5.5CVSS
5.8AI Score
0.0004EPSS
Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of resources and/or denial of service.
5.5CVSS
5.9AI Score
0.0004EPSS
Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.
5.5CVSS
5.8AI Score
0.0004EPSS
Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
5.5CVSS
5.8AI Score
0.0004EPSS
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
5.5CVSS
6.2AI Score
0.0004EPSS
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 inform...
5.6CVSS
5.7AI Score
0.0004EPSS
SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.
5.3CVSS
6.3AI Score
0.0005EPSS
TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.
5.7CVSS
6.1AI Score
0.0005EPSS
TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.
5.7CVSS
6.1AI Score
0.001EPSS
Insufficient input validation in the SMU may allow an attacker to improperly lock resources, potentially resulting in a denial of service.
5.3CVSS
5.9AI Score
0.001EPSS