CVE-2023-37003 Denial of service in n/a
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-2023-37003?
CVE-2023-37003 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 `E-RAB Setup Response` 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-2023-37003?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2023-37003?
No fix has been published for CVE-2023-37003 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-2023-37003 being exploited?
There is no known exploitation of CVE-2023-37003 in the wild and no public exploit code.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-4mwx-vgq4-7vr5.