Open5gs 2.7.2 Experiences Faulty AMF Crash from UE Registration Requests
CVE-2024-56921

7.5HIGH

Key Information:

Vendor

Open5gs

Status
Open5gs
Vendor
CVE Published:
3 February 2025

What is CVE-2024-56921?

A vulnerability exists in Open5gs v2.7.2 where a specific timing in the InitialUEMessage during UE registration requests can lead to a crash of the AMF. This issue arises due to incorrect error handling in the gmm_state_exception() function when processing the Nausf_UEAuthentication_Authenticate response, potentially disrupting service and affecting connected users.

References

https://github.com/open5gs/open5gs/issues/3608
https://github.com/open5gs/open5gs/commit/f780f9af45c27b6...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.