Yuanhao Li

A denial of service issue has been found in the `gmm state authentication` function of the file `src/amf/gmm-sm.c` in the component AMF. This issue can be exploited remotely, leading to a network-wide outage, causing all registered UEs to lose connectivity, and blocking new registrations until the AMF is restarted. The exploit has been disclosed to the public and may be used.

A vulnerability was found in the function `amf nsmf pdusession handle update sm context` of the file src/amf/nsmf-handler.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. This issue allows a single UE to crash the AMF, resulting in the complete loss of mobility and session management services and causing a network-wide outage. All registered UEs will lose connectivity, and new registrations will be blocked until the AMF is restarted, leading to a high availability impact.