CVE-2023-37033 Null dereference in n/a

Q: Is CVE-2023-37033 being exploited?

There is no known exploitation of CVE-2023-37033 in the wild and no public exploit code.

Q: How do I fix CVE-2023-37033?

No fix has been published for CVE-2023-37033 yet. Limit exposure of the affected software until one is available.

Medium 6.5 Published 21 Jan 2025 Updated 20 Mar 2025

Network-adjacent attackers can crash the Magma MME by sending a malformed S1AP packet, requiring a patch to restore service availability.

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

What is CVE-2023-37033?

CVE-2023-37033 is a medium-severity vulnerability in n/a, published on 21 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A Null pointer dereference vulnerability in the Mobile Management Entity (MME) in Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) allows network-adjacent attackers to crash the MME via an S1AP `Initial UE Message` packet missing an expected `EUTRAN_CGI` field.

Weakness: CWE-476

Which versions are affected by CVE-2023-37033?

It affects 1 product.

Products include Linuxfoundation Magma.

How do I fix CVE-2023-37033?

No fix has been published for CVE-2023-37033 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-37033 being exploited?

There is no known exploitation of CVE-2023-37033 in the wild and no public exploit code.

Sources

Also known as GHSA-4cxp-jj37-cmrx.