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Vulnerability DatabaseCVE-2023-37031

CVE-2023-37031: 
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 allows network-adjacent attackers to crash the MME via an S1AP eNB Configuration Transfer packet missing its required Target eNB ID field (NVD, Cellular Security).

Technical details

The vulnerability is classified as a NULL pointer dereference issue with a CVSS v3.1 base score of 6.5 MEDIUM (Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). The issue occurs when processing S1AP eNB Configuration Transfer packets that are missing the required Target eNB ID field, leading to a null pointer being dereferenced and causing the MME to crash (NVD).

Impact

When exploited, this vulnerability allows attackers to crash the Mobile Management Entity (MME), resulting in a denial of service that affects cellular communications at a city-wide level. The disruption could persist until network operators identify and patch the vulnerability (Cellular Security).

Mitigation and workarounds

The vulnerability has been fixed in Magma v1.9 with commit 08472ba98b8321f802e95f5622fa90fec2dea486. Organizations running affected versions should upgrade to the patched version (NVD).

Additional resources

Source: This report was generated using AI

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