CVE-2023-37027: Null Pointer Dereference
First published: Tue Jan 21 2025(Updated: )
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 `E-RAB Modification Indication` packet missing an expected `eNB_UE_S1AP_ID` field.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Magma | <=1.8.0 | |
| <1.9 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-37027?
CVE-2023-37027 is considered a critical vulnerability as it allows network-adjacent attackers to crash the Mobile Management Entity.
How do I fix CVE-2023-37027?
To fix CVE-2023-37027, upgrade the Mobile Management Entity software to version 1.9 or later.
What software versions are affected by CVE-2023-37027?
CVE-2023-37027 affects Magma Mobile Management Entity versions up to and including 1.8.0.
What is the exploit mechanism for CVE-2023-37027?
The vulnerability can be exploited via an S1AP E-RAB Modification Indication packet that lacks the expected eNB_UE_S1AP_ID.
Who is impacted by CVE-2023-37027?
Network operators using the affected versions of Magma's Mobile Management Entity are impacted by CVE-2023-37027.
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