Shannon Baseband NrmmMsgCodec Access Category Definitions Heap Buffer Overflow
Posted by deepcore on March 18, 2023 – 10:24 am
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 Operator-defined access category definitions message (IEI = 0x76).
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