NAS 5G: Fix possible type confusion on GUTI dereference #1479
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Although TS 24.501 states this field “may be included to assign a 5G-GUTI to a UE”, it is typed as 5GS mobile identity and may contain other values like SUPI or IMEI. This assumption leads to type confusion and a memory safety violation, ultimately leading to denial of service. Signed-off-by: Eduard Vlad <[email protected]>
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Although TS 24.501 states this field “may be included to assign a 5G-GUTI to a UE”, it is typed as 5GS mobile identity and may contain other values like SUPI or IMEI. This assumption leads to type confusion and a memory safety violation, ultimately leading to denial of service.