CVE-2023-37005 Denial of service in n/a

Q: Is CVE-2023-37005 being exploited?

There is no known exploitation of CVE-2023-37005 in the wild and no public exploit code.

Q: How do I fix CVE-2023-37005?

No fix has been published for CVE-2023-37005 yet. Limit exposure of the affected software until one is available.

Medium 5.3 Published 22 Jan 2025 Updated 28 Jan 2025

Remote attackers can crash the Open5GS MME by sending malformed ASN.1 packets, causing a denial of service in 5G core networks.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-37005?

CVE-2023-37005 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 22 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Open5GS MME versions <= 2.6.4 contain an assertion that can be remotely triggered via a malformed ASN.1 packet over the S1AP interface. An attacker may send an `Initial Context Setup Failure` message missing a required `MME_UE_S1AP_ID` field to repeatedly crash the MME, resulting in denial of service.

Weakness: CWE-617

Which versions are affected by CVE-2023-37005?

It affects 1 product.

Products include Open5gs Open5gs.

How do I fix CVE-2023-37005?

No fix has been published for CVE-2023-37005 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-37005 being exploited?

There is no known exploitation of CVE-2023-37005 in the wild and no public exploit code.

All Open5gs Open5gs vulnerabilities

Sources

Also known as GHSA-x76x-v36q-wqrf.