CVE-2021-43997

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Summary

CVECVE-2021-43997
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-17 21:15:00 UTC
Updated2022-10-12 00:15:00 UTC
DescriptionFreeRTOS versions 10.2.0 through 10.4.5 do not prevent non-kernel code from calling the xPortRaisePrivilege internal function to raise privilege. FreeRTOS versions through 10.4.6 do not prevent a third party that has already independently gained the ability to execute injected code to achieve further privilege escalation by branching directly inside a FreeRTOS MPU API wrapper function with a manually crafted stack frame. These issues affect ARMv7-M MPU ports, and ARMv8-M ports with MPU support enabled (i.e. configENABLE_MPU set to 1). These are fixed in V10.5.0 and in V10.4.3-LTS Patch 3.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Amazon Freertos All All All All
Operating System Amazon Freertos 10.4.3 patch1 All All

References

ReferenceSourceLinkTags
Release V10.4.6 · FreeRTOS/FreeRTOS-Kernel · GitHub MISC github.com
Release V10.4.3 LTS Patch 2 · FreeRTOS/FreeRTOS-Kernel · GitHub MISC github.com
Release V10.4.3 LTS Patch 3 · FreeRTOS/FreeRTOS-Kernel · GitHub MISC github.com
Release V10.5.0 · FreeRTOS/FreeRTOS-Kernel · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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