CVE-2023-37013 Denial of service in n/a

High 7.3 Published Updated

Remote attackers can crash Open5GS MME by sending oversized ASN.1 packets, causing 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-2023-37013?

CVE-2023-37013 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 contains an assertion that can be remotely triggered via a sufficiently large ASN.1 packet over the S1AP interface. An attacker may repeatedly send such an oversized packet to cause the `ogs_sctp_recvmsg` routine to reach an unexpected network state and crash, leading to denial of service.

Weakness: CWE-617

Which versions are affected by CVE-2023-37013?

It affects 1 product.

Products include Open5gs Open5gs.

How do I fix CVE-2023-37013?

No fix has been published for CVE-2023-37013 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-2023-37013 being exploited?

There is no known exploitation of CVE-2023-37013 in the wild and no public exploit code.

All Open5gs Open5gs vulnerabilities

Sources

Also known as GHSA-5jwj-c4gj-x35c.

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