Athlon Security Vulnerabilities
A potential weakness in AMD SPI protection features may allow a malicious attacker with Ring0 (kernel mode) access to bypass the native System Management Mode (SMM) ROM...
8.2CVSS
6.8AI Score
0.0004EPSS
A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called local memory on various...
6.5CVSS
6.2AI Score
0.001EPSS
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...
5.7CVSS
6.1AI Score
0.0005EPSS
Improper access control in System Management Mode (SMM) may allow an attacker to write to SPI ROM potentially leading to arbitrary code...
9.8CVSS
9.5AI Score
0.001EPSS
Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code...
9.8CVSS
8.5AI Score
0.013EPSS
A stack buffer overflow vulnerability discovered in AsfSecureBootDxe in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to run arbitrary code execution during the DXE...
9.8CVSS
9.6AI Score
0.001EPSS
A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of...
5.5CVSS
6.7AI Score
0.001EPSS
An attacker with specialized hardware and physical access to an impacted device may be able to perform a voltage fault injection attack resulting in compromise of the ASP secure boot potentially leading to arbitrary code...
6.8CVSS
6.7AI Score
0.001EPSS
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information...
4.7CVSS
6.6AI Score
0.0004EPSS
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in...
7.8CVSS
7.7AI Score
0.0004EPSS
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive...
5.5CVSS
6.9AI Score
0.001EPSS
Insufficient bounds checking in ASP (AMD Secure Processor) may allow for an out of bounds read in SMI (System Management Interface) mailbox checksum calculation triggering a data abort, resulting in a potential denial of...
7.5CVSS
7.8AI Score
0.001EPSS
Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and...
9.1CVSS
9.1AI Score
0.002EPSS
Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of...
9.1CVSS
9.1AI Score
0.001EPSS
Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an attacker with physical access and control of a Uapp that runs under the bootloader to reveal the contents of the ASP (AMD Secure Processor) bootloader accessible memory to a serial port, resulting in a...
6.1CVSS
6.6AI Score
0.001EPSS
Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of...
5.9CVSS
6.5AI Score
0.001EPSS
Failure to validate the length fields of the ASP (AMD Secure Processor) sensor fusion hub headers may allow an attacker with a malicious Uapp or ABL to map the ASP sensor fusion hub region and overwrite data structures leading to a potential loss of confidentiality and...
9.1CVSS
9.1AI Score
0.001EPSS
Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss of...
5.5CVSS
7.2AI Score
0.0004EPSS
Certain size values in firmware binary headers could trigger out of bounds reads during signature validation, leading to denial of service or potentially limited leakage of information about out-of-bounds memory...
8.2CVSS
8.7AI Score
0.001EPSS
Insufficient bounds checking in ASP (AMD Secure Processor) may allow for an out of bounds read in SMI (System Management Interface) mailbox checksum calculation triggering a data abort, resulting in a potential denial of...
7.5CVSS
7.8AI Score
0.001EPSS
Insufficient validation in parsing Owner's Certificate Authority (OCA) certificates in SEV (AMD Secure Encrypted Virtualization) and SEV-ES user application can lead to a host crash potentially resulting in denial of...
7.5CVSS
8.4AI Score
0.001EPSS
A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially leading to information...
5.5CVSS
7.1AI Score
0.0004EPSS
Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of...
8.8CVSS
8.6AI Score
0.001EPSS
Insufficient control flow management in AmdCpmOemSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to an escalation of...
8.8CVSS
8.6AI Score
0.001EPSS
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information...
4.7CVSS
6.2AI Score
0.0004EPSS
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...
7.8CVSS
8AI Score
0.0004EPSS
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information...
5.5CVSS
5.6AI Score
0.001EPSS
Insufficient verification of missing size check in 'LoadModule' may lead to an out-of-bounds write potentially allowing an attacker with privileges to gain code execution of the OS/kernel by loading a malicious...
7.8CVSS
8AI Score
0.0004EPSS
Insufficient memory cleanup in the AMD Secure Processor (ASP) Trusted Execution Environment (TEE) may allow an authenticated attacker with privileges to generate a valid signed TA and potentially poison the contents of the process memory with attacker controlled data resulting in a loss of...
5.5CVSS
6.1AI Score
0.0004EPSS
Improper parameters handling in the AMD Secure Processor (ASP) kernel may allow a privileged attacker to elevate their privileges potentially leading to loss of...
7.8CVSS
7.2AI Score
0.0004EPSS
Improper parameters handling in AMD Secure Processor (ASP) drivers may allow a privileged attacker to elevate their privileges potentially leading to loss of...
7.8CVSS
7.4AI 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...
5.6CVSS
5.7AI Score
0.0004EPSS
A malformed SMI (System Management Interface) command may allow an attacker to establish a corrupted SMI Trigger Info data structure, potentially leading to out-of-bounds memory reads and writes when triggering an SMI resulting in a potential loss of...
7.8CVSS
7.9AI Score
0.0004EPSS
An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially resulting in a denial of...
4.4CVSS
5.6AI Score
0.0004EPSS
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information...
6.5CVSS
6.8AI Score
0.0005EPSS
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent...
6.5CVSS
7.3AI Score
0.001EPSS
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information...
6.5CVSS
6AI Score
0.001EPSS
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...
7.8CVSS
8AI Score
0.0004EPSS
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...
7.8CVSS
8.1AI Score
0.0004EPSS
A malicious or compromised UApp or ABL could potentially change the value that the ASP uses for its reserved DRAM, to one outside of the fenced area, potentially leading to data...
4.4CVSS
5.7AI Score
0.0004EPSS
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...
4.4CVSS
5.4AI Score
0.0004EPSS
A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory...
7.8CVSS
7.8AI Score
0.0004EPSS
A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) could be used by an attacker to exfiltrate arbitrary memory from the ASP stage 2 bootloader potentially leading to information...
5.5CVSS
6AI Score
0.0004EPSS
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...
7.1CVSS
7.1AI Score
0.0004EPSS
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...
5.5CVSS
6.3AI Score
0.0004EPSS
A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and...
7.1CVSS
7.2AI 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...
5.5CVSS
5.8AI 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...
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...
5.5CVSS
5.9AI 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...
5.5CVSS
5.8AI Score
0.0004EPSS