#CPUINFO 4620 SOFTWARE#
#CPUINFO 4620 CODE#

An out-of-bounds read under a complex microarchitectural condition in the memory subsystem for some Intel Atom(R) Processors may allow an authenticated user to potentially enable information disclosure or cause a denial of service via network access.

IPAS: Security Advisories for November 2021ĬVE-2021-33120: microcode: Out of bounds read for some Intel Atom processorsĪ flaw was found in microcode.

This issue was disclosed on November 9th, 2021. This issue has been assigned CVE-2021-0146 and is rated Important. Hardware allows activation of test and debug logic at runtime for some Intel® Atom® processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Fast Store Forwarding Predictor Technical PaperĬVE-2021-0146: VT-d-related Privilege Escalation.

This issue has been assigned CVE-2021-0145 and is rated Moderate. This flaw allows an authenticated user with local access to perform information disclosure via transient execution. Fast store forward prediction is not enabled when SSBD is set. Such control helps a malicious program running in user mode (or guest VM) to trigger transient execution gadgets in supervisor mode (or VMM), potentially leading to sensitive data disclosure.

#CPUINFO 4620 SOFTWARE#

Fast store forwarding prediction in one domain could be controlled by software previously executed in another domain. IPAS: Security Advisories for February 2022ĬVE-2021-0145: Fast store forward predictor - Cross Domain TrainingĪ flaw was found in microcode.This issue has been assigned CVE-2021-0127 and is rated Moderate.

This flaw allows a possible temporary denial of service (TDOS) to occur. The hang was observed on a Skylake server processor, and subsequent analysis indicated additional potentially affected processors.

#CPUINFO 4620 CODE#

Under complex microarchitectural conditions, an unexpected code breakpoint may cause a system hang.

Background Security Issues CVE-2021-0127: Intel Processor Breakpoint Control FlowĪ flaw was found in microcode. Please contact your hardware vendor to determine whether more recent BIOS/firmware updates are recommended, as additional improvements may be available. Red Hat provides updated microcode, developed by our microprocessor partners, as a customer convenience. Red Hat is aware of several CPU hardware flaws that affect Intel CPU hardware microarchitecture and on-board components. Intel Microcode Updates That Mitigate The Issues.Non-zero writes to STATUS/LOGS bits of the Thermal Status Model Specific Register (`IA32THERMSTATUS` MSR) may generate General Protection (GP) fault.System May Hang or Reboot Unexpectedly Due to System Stress.

Cpuinfo 4620