Shannon Baseband NrmmMsgCodec Extended Emergency Number List Heap Buffer Overflow

Web: https://packetstormsecurity.com/files/171380/GS20230317135224.tgz

There is a heap buffer overflow in Shannon baseband, inside the 5G MM protocol implementation (NrmmMsgCodec as it is called in Shannon according to debug strings), specifically when handling the "Extended emergency number list" message (IEI = 0x7A).

baseband buffer buffer overflow emergency heap buffer overflow overflow