CVE-2021-43997

Katalog CVE

CVSS 7.8 · High EPSS 0,34%

Kerentanan pada amazon freertos. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

17 November 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2 release notes · advisory pihak ketiga
• https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6 release notes · advisory pihak ketiga
• https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3
• https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0