CVE-2023-37023 Denial of service in n/a

Q: Is CVE-2023-37023 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37023 exists.

Q: How do I fix CVE-2023-37023?

No fix has been published for CVE-2023-37023 yet. Limit exposure of the affected software until one is available.

High 8.6 Published 22 Jan 2025 Updated 6 Feb 2025

An attacker can crash the Open5GS MME by sending malformed Uplink NAS Transport packets, causing a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-37023?

CVE-2023-37023 is a high-severity denial of service vulnerability in Open5gs Open5gs, published on 22 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Open5GS MME versions <= 2.6.4 contain a reachable assertion in the `Uplink NAS Transport` packet handler. A packet missing its `MME_UE_S1AP_ID` field causes Open5gs to crash; an attacker may repeatedly send such packets to cause denial of service.

Weakness: CWE-617

Which versions are affected by CVE-2023-37023?

It affects 1 product.

Products include Open5gs Open5gs.

How do I fix CVE-2023-37023?

No fix has been published for CVE-2023-37023 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-2023-37023 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37023 exists.

All Open5gs Open5gs vulnerabilities

Sources

Also known as GHSA-x7pq-2j3f-24rv.