Description (CNA)
Numeric truncation of the buffer length in the MPU buffer authorization check in FreeRTOS-Kernel V11.3.0 and V11.3.1 on the Arm Cortex-R82 (Armv8-R AArch64) MPU port might allow, under certain conditions, an unprivileged task on MPU-enabled builds to read or write privileged kernel memory beyond the validated buffer window, via a stream buffer system call. To remediate this issue, users should upgrade to version V11.3.2 or later.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| FreeRTOS / FreeRTOS-Kernel | affected 11.3.0 through 11.3.1 |
CWE
CWE-197, CWE-787, CWE-125
References
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.2
- https://aws.amazon.com/security/security-bulletins/2026-138-aws/
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-qf4j-6f5j-876g
ADP enrichment
No English description supplied.
No references supplied.