VDB-292913 · CVE-2023-37027 · EUVD-2023-40947

Linux Foundation Magma up to 1.8.0 Mobile Management Entity eNB_UE_S1AP_ID null pointer dereference

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4.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Foundation Magma up to 1.8.0. It has been classified as problematic. Impacted is an unknown function of the component Mobile Management Entity. The manipulation of the argument eNB_UE_S1AP_ID leads to null pointer dereference. This vulnerability is listed as CVE-2023-37027. The attack must be carried out from within the local network. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Foundation Magma up to 1.8.0. It has been rated as problematic. This issue affects an unknown code block of the component Mobile Management Entity. The manipulation of the argument eNB_UE_S1AP_ID with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

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.

The advisory is shared at cellularsecurity.org. The identification of this vulnerability is CVE-2023-37027 since 06/28/2023. The exploitation is known to be easy. Access to the local network is required for this attack. Technical details are known, but no exploit is available.

Upgrading to version 1.9 eliminates this vulnerability. Applying the patch 08472ba98b8321f802e95f5622fa90fec2dea486 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-40947). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Linux Foundation

Name

Magma

Version

License

open-source

Website

Vendor: https://www.linuxfoundation.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Magma 1.9
Patch: 08472ba98b8321f802e95f5622fa90fec2dea486

Timelineinfo

06/28/2023 🔍
01/22/2025 +574 days 🔍
01/22/2025 +0 days 🔍
01/15/2026 +358 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: cellularsecurity.org
Status: Confirmed

CVE: CVE-2023-37027 (🔍)
GCVE (CVE): GCVE-0-2023-37027
GCVE (VulDB): GCVE-100-292913
EUVD: 🔍

Entryinfo

Created: 01/22/2025 07:35
Updated: 01/15/2026 06:52
Changes: 01/22/2025 07:35 (57), 03/19/2025 00:08 (12), 01/15/2026 06:52 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.