CVE-2023-21504
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-21504 is a buffer overflow vulnerability discovered in the mm_Plmncoordination.c component of Samsung's Shannon baseband prior to SMR May-2023 Release 1. The vulnerability allows remote attackers to cause invalid memory access (NVD, CVE).

Technical details

The vulnerability is classified as a buffer copy without checking size of input (Classic Buffer Overflow) vulnerability (CWE-120). It has received a CVSS v3.1 base score of 9.8 (CRITICAL) from NIST with vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, while Samsung Mobile assessed it with a score of 5.6 (MEDIUM) with vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L (NVD).

Impact

If exploited, this vulnerability could allow remote attackers to cause invalid memory access, potentially leading to system compromise with high impacts on confidentiality, integrity, and availability of the affected system (NVD).

Mitigation and workarounds

The vulnerability was addressed in Samsung's SMR May-2023 Release 1. Users should update their devices to this version or later to mitigate the risk (Samsung Mobile Security).

Additional resources


SourceThis report was generated using AI

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