VDB
CVE-2021-43997
CVE-2021-43997
PUBLISHED
CVSS 7.800000190734863 HIGH
Amazon FreeRTOS 10.2.0 through 10.4.5 on the ARMv7-M and ARMv8-M MPU platforms does not prevent non-kernel code from calling the xPortRaisePrivilege and vPortResetPrivilege internal functions. This is fixed in 10.4.6 and in 10.4.3-LTS Patch 2.
EPSS 0.10% · 27.2th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.10%
27.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| amazon | freertos | 10.2.0, 10.4.3 |
| n/a | n/a | n/a |
Timeline
- Nov 17, 2021 CVE Published
- Nov 18, 2021 EPSS Score
- Nov 18, 2021 PoC Published
- Jan 6, 2022 EPSS Score
- Jan 12, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jun 27, 2022 EPSS Score
- Aug 22, 2022 EPSS Score
- Oct 12, 2022 CVE Updated
- Oct 17, 2022 EPSS Score
References
- 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 url
- https://nvd.nist.gov/vuln/detail/CVE-2021-43997 advisory