Epyc 7002 Firmware Security Vulnerabilities
Race condition in ASP firmware could allow less privileged x86 code to perform ASP SMM (System Management Mode) operations.
7CVSS
7.3AI Score
0.0004EPSS
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
A potential vulnerability exists in AMD Platform Security Processor (PSP) that may allow an attacker to zero any privileged register on the System Management Network which may lead to bypassing SPI ROM protections.
7.8CVSS
7.4AI 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
A potential denial of service (DoS) vulnerability exists in the integrated chipset that may allow a malicious attacker to hang the system when it is rebooted.
7.5CVSS
7.2AI Score
0.001EPSS
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.
7.8CVSS
8AI 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
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.
7.8CVSS
7.8AI Score
0.0004EPSS
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.
7.8CVSS
8AI 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
Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.
4.7CVSS
5.5AI 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
A TOCTOU in ASP bootloader may allow an attackerto tamper with the SPI ROM following data read to memory potentially resultingin S3 data corruption and information disclosure.
7.4CVSS
8.4AI Score
0.002EPSS
Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.
7.1CVSS
7.1AI 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 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.
7.8CVSS
7.9AI Score
0.0004EPSS
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.
7.1CVSS
7.2AI Score
0.0004EPSS
Insufficient checks in SEV may lead to a malicious hypervisor disclosing the launch secret potentially resulting in compromise of VM confidentiality.
6.5CVSS
6.9AI Score
0.0004EPSS
Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality.
7.1CVSS
7.1AI Score
0.0004EPSS
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.
6.5CVSS
6.3AI 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
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.
6.5CVSS
6AI Score
0.001EPSS
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
5.5CVSS
5.6AI Score
0.001EPSS
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure.
6.5CVSS
6.8AI Score
0.0005EPSS
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
6.5CVSS
7.3AI Score
0.001EPSS
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 syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped register potentially leading to a denial of service.
6.5CVSS
6.6AI Score
0.001EPSS
Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading to a denial-of-service.
6.5CVSS
6.7AI Score
0.001EPSS
Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.
2.4CVSS
4.6AI Score
0.001EPSS
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.
7.5CVSS
7.5AI Score
0.001EPSS
Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space to an invalid value potentially resulting in a denial of service.
7.5CVSS
7.5AI 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