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Vulnerability DatabaseCVE-2023-37033

CVE-2023-37033: 
NixOS vulnerability analysis and mitigation

Overview

A Null pointer dereference vulnerability exists in the Mobile Management Entity (MME) in Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486). The vulnerability was discovered in January 2025 and affects the core cellular infrastructure component (NVD).

Technical details

The vulnerability allows network-adjacent attackers to crash the MME via an S1AP Initial UE Message packet missing an expected EUTRAN_CGI field. The vulnerability has been assigned a CVSS v3.1 base score of 6.5 (MEDIUM) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating adjacent network access is required but no privileges or user interaction are needed to exploit it (NVD).

Impact

If successfully exploited, the vulnerability allows attackers to crash the Mobile Management Entity (MME), which can result in a denial of service affecting cellular communications at a city-wide level. The impact is limited to availability with no direct effect on confidentiality or integrity (CellularSecurity).

Mitigation and workarounds

The vulnerability has been fixed in Magma v1.9 with commit 08472ba98b8321f802e95f5622fa90fec2dea486. Organizations running affected versions should upgrade to v1.9 or later to mitigate this vulnerability (NVD).

Additional resources

Source: This report was generated using AI

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