Amd Epyc 7663 vulnerabilities, page 3

98 vulnerabilities

Known vulnerabilities in Amd Epyc 7663, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.5MediumCVE-2021-26371amd · 1st gen amd epyc™ processors +140 moreamd 1st gen amd epyc™ processorsA 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 disclosure.EPSS0.19%8.4HighCVE-2021-26340amd · amd epyc™ +105 moreamd amd epyc™A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).EPSS0.25%5.5MediumCVE-2021-26320amd · 1st gen amd epyc™ +59 moreamd 1st gen amd epyc™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 PSPEPSS0.19%7.8HighCVE-2021-26323amd · 3rd gen amd epyc™ +20 moreamd 3rd gen amd epyc™Failure to validate SEV Commands while SNP is active may result in a potential impact to memory integrity.EPSS0.25%4.7MediumCVE-2021-26347amd · epyc_7002_firmware +49 moreamd epyc_7002_firmwareFailure 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.EPSS0.20%5.5MediumCVE-2021-26404amd · 3rd gen epyc +23 moreamd 3rd gen epycImproper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.EPSS0.19%5.5MediumCVE-2021-26372amd · athlon™ series +46 moreamd athlon™ seriesInsufficient 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.EPSS0.22%5.5MediumCVE-2021-26355amd · 3rd gen epyc +24 moreamd 3rd gen epycInsufficient 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.EPSS0.18%7.1HighCVE-2021-26402amd · 2nd gen epyc +51 moreamd 2nd gen epycInsufficient 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.EPSS0.18%5.5MediumCVE-2021-26329amd · 1st gen amd epyc™ +59 moreamd 1st gen amd epyc™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.EPSS0.22%6.5MediumCVE-2021-46744amd · amd processors +99 moreamd amd processorsAn 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.EPSS0.33%6.8MediumCVE-2021-46775amd · 2nd gen amd epyc™ +49 moreamd 2nd gen amd epyc™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.EPSS0.32%9.1CriticalCVE-2021-46756amd · 1st gen amd epyc™ processors +80 moreamd 1st gen amd epyc™ processorsInsufficient 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.EPSS0.65%7.8HighCVE-2021-46771amd · 3rd gen amd epyc™ +23 moreamd 3rd gen amd epyc™Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.EPSS0.30%7.5HighCVE-2021-46763amd · 2nd gen amd epyc™ +49 moreamd 2nd gen amd epyc™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.EPSS0.49%7.5HighCVE-2021-46774amd · 1st gen amd epyc™ processors +149 moreamd 1st gen amd epyc™ processorsInsufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.EPSS0.51%9.1CriticalCVE-2021-46762amd · 2nd gen amd epyc™ +51 moreamd 2nd gen amd epyc™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.EPSS0.35%5.6MediumCVE-2021-46778amd · amd processors +179 moreamd amd processorsExecution 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.EPSS0.23%8.8HighCVE-2021-46769amd · 2nd gen amd epyc™ +49 moreamd 2nd gen amd epyc™Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead to code execution.EPSS0.78%7.5HighCVE-2021-46764amd · 2nd gen amd epyc™ +49 moreamd 2nd gen amd epyc™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.EPSS0.63%