{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"state":"PUBLISHED","cveId":"CVE-2021-43997","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","dateUpdated":"2024-08-04T04:10:16.905Z","dateReserved":"2021-11-17T00:00:00.000Z","datePublished":"2021-11-17T00:00:00.000Z"},"containers":{"cna":{"providerMetadata":{"orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre","dateUpdated":"2022-10-11T00:00:00.000Z"},"descriptions":[{"lang":"en","value":"FreeRTOS 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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2"},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6"},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0"},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T04:10:16.905Z"},"title":"CVE Program Container","references":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2","tags":["x_transferred"]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6","tags":["x_transferred"]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0","tags":["x_transferred"]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3","tags":["x_transferred"]}]}]}}