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.
References
Link | Resource |
---|---|
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2 | Release Notes Third Party Advisory |
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-3 | |
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6 | Release Notes Third Party Advisory |
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.5.0 |
Configurations
Configuration 1 (hide)
|
History
12 Oct 2022, 00:15
Type | Values Removed | Values Added |
---|---|---|
Summary | 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. | |
References |
|
23 Nov 2021, 16:03
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:o:amazon:freertos:10.4.3:patch1:*:*:lts:*:*:* cpe:2.3:o:amazon:freertos:*:*:*:*:-:*:*:* |
|
CVSS |
v2 : v3 : |
v2 : 7.2
v3 : 7.8 |
CWE | NVD-CWE-noinfo | |
References | (MISC) https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.6 - Release Notes, Third Party Advisory | |
References | (MISC) https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V10.4.3-LTS-Patch-2 - Release Notes, Third Party Advisory |
17 Nov 2021, 21:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-11-17 21:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-43997
Mitre link : CVE-2021-43997
CVE.ORG link : CVE-2021-43997
JSON object : View
Products Affected
amazon
- freertos
CWE