Amd: >> Epyc 7f52 Firmware Security Vulnerabilities
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
integrity.
CVSS Score
9.1
EPSS Score
0.001
Published
2023-05-09
Insufficient input validation in the SMU may
allow an attacker to corrupt SMU SRAM potentially leading to a loss of
integrity or denial of service.
CVSS Score
3.9
EPSS Score
0.0
Published
2023-05-09
Insufficient input validation in the SMU may
enable a privileged attacker to write beyond the intended bounds of a shared
memory buffer potentially leading to a loss of integrity.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-05-09
Improper validation of DRAM addresses in SMU may
allow an attacker to overwrite sensitive memory locations within the ASP
potentially resulting in a denial of service.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-05-09
Insufficient syscall input validation in the ASP
Bootloader may allow a privileged attacker to execute arbitrary DMA copies,
which can lead to code execution.
CVSS Score
8.8
EPSS Score
0.002
Published
2023-05-09
Improper input validation in ABL may enable an
attacker with physical access, to perform arbitrary memory overwrites,
potentially leading to a loss of integrity and code execution.
CVSS Score
6.8
EPSS Score
0.001
Published
2023-05-09
Improper access control settings in ASP
Bootloader may allow an attacker to corrupt the return address causing a
stack-based buffer overrun potentially leading to arbitrary code execution.
CVSS Score
9.8
EPSS Score
0.003
Published
2023-05-09
An attacker with a compromised ASP could
possibly send malformed commands to an ASP on another CPU, resulting in an out
of bounds write, potentially leading to a loss a loss of integrity.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-05-09
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 integrity.
CVSS Score
5.5
EPSS Score
0.0
Published
2023-05-09
A TOCTOU in ASP bootloader may allow an attacker
to tamper with the SPI ROM following data read to memory potentially resulting
in S3 data corruption and information disclosure.
CVSS Score
7.4
EPSS Score
0.001
Published
2023-05-09