A missing validation check in FreeRTOS-Plus-TCPs ICMPv6 packet processing code can lead to an out-of-bounds read when receiving ICMPv6 packets of certain message types which are smaller than the expected size. These issues only affect applications using IPv6.
Users should upgrade to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.
The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.