CVE-2026-33063
HighSummary
free5GC to otwarte źródło rdzenia sieci 5G. Wersje free5GC AUSF przed 1.4.2 mają podatność na niewłaściwe sprawdzenie wartości null, co prowadzi do odmowy usługi. Atakujący zdalnie może spowodować awarię usługi AUSF, wysyłając spreparowane żądanie uwierzytelnienia UE.
Risk Assessment
Podatność ta może prowadzić do całkowitej odmowy usługi dla usługi uwierzytelniania AUSF, co może zakłócić działanie sieci 5G w organizacji.
Recommendation
Zaleca się aktualizację do wersji free5GC AUSF 1.4.2, która naprawia tę podatność. Nie ma bezpośredniego obejścia na poziomie aplikacji.
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Original NVD description (English source)
free5GC is an open source 5G core network. free5GC AUSF prior to version 1.4.2 has is an Improper Null Check vulnerability leading to Denial of Service. All deployments of free5GC v4.0.1 using the AUSF UE authentication service (`/nausf-auth/v1/ue-authentications` endpoint) are affected. A remote attacker can cause the AUSF service to panic and crash by sending a crafted UE authentication request that triggers a nil interface conversion in the `GetSupiFromSuciSupiMap` function. This results in complete denial of service for the AUSF authentication service. The `GetSupiFromSuciSupiMap` function attempts to perform an interface conversion from `interface{}` to `*context.SuciSupiMap` without checking if the underlying value is nil. When `SuciSupiMap` is nil, the code panics with "interface conversion: interface {} is nil, not *context.SuciSupiMap". free5GC AUSF version 1.4.2 patches the issue. There is no direct workaround at the application level. The recommendation is to apply the prov
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

