Description (CNA)
Insufficient validation of the prefix length field in IPv6 Router Advertisement processing in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause memory corruption by sending a crafted Router Advertisement with a prefix length value exceeding the maximum valid length, resulting in a heap buffer overflow. Users processing IPv4 RA only are not impacted. To mitigate this issue, users should upgrade to the fixed version when available.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| AWS / FreeRTOS-Plus-TCP | affected 4.0.0 before 4.2.6; affected 4.3.0 before 4.4.1; unaffected 4.2.6; unaffected 4.4.1 |
CWE
CWE-787
References
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.4.1
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.2.6
- https://aws.amazon.com/security/security-bulletins/2026-023-aws/
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-97qg-4359-xm3x
ADP enrichment
No English description supplied.
No references supplied.