Remote Denial of Service Vulnerability in Open5GS MME by Open5GS
CVE-2023-37016

8.6HIGH

Key Information:

Vendor

Open5GS

Status
Open5GS MME
Vendor
CVE Published:
22 January 2025

What is CVE-2023-37016?

The vulnerability affects Open5GS MME, where versions up to 2.6.4 are susceptible to a denial of service condition. This is caused by an assertion that can be triggered remotely through a malformed ASN.1 packet sent over the S1AP interface. Specifically, an attacker can exploit the flaw by sending a crafted 'UE Context Modification Response' message lacking the necessary 'MME_UE_S1AP_ID' field. This can lead to repeated crashes of the MME, disrupting service availability.

References

https://cellularsecurity.org/ransacked

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.