Open5GS MME versions <= 2.6.4 contains an assertion that can be remotely triggered via a sufficiently large ASN.1 packet over the S1AP interface. An attacker may repeatedly send such an oversized packet to cause the ogs_sctp_recvmsg routine to reach an unexpected network state and crash, leading to denial of service.
| Software | From | Fixed in |
|---|---|---|
| open5gs / open5gs | - | 2.6.4.x |