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Shannon Baseband NrmmMsgCodec Intra-Object Overflow

Shannon Baseband NrmmMsgCodec Intra-Object Overflow
Posted Mar 17, 2023
Authored by Ivan Fratric, Google Security Research

There is an intra-object 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 Service Area List message (IEI = 0x27).

tags | exploit, overflow, protocol
advisories | CVE-2023-26075
SHA-256 | ca27ff3f40a5cef1422ff326c82c6ac37d4d2a24ac33342144bc8a5c84aa2848
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