Denial of Service Vulnerability in Open5GS MME Software
CVE-2023-37012

5.3MEDIUM

Key Information:

Vendor

Open5GS

Status
MME
Vendor
CVE Published:
22 January 2025

What is CVE-2023-37012?

Open5GS MME versions up to 2.6.4 are susceptible to a denial of service vulnerability due to an assertion that can be exploited via a malformed ASN.1 packet sent over the S1AP interface. An attacker can trigger this vulnerability by sending a malformed Initial UE Message that omits the necessary PLMN Identity field. This can lead to continuous crashes of the MME, effectively disrupting service availability and impacting connected users.

References

https://cellularsecurity.org/ransacked

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-37012 : Denial of Service Vulnerability in Open5GS MME Software