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Vulnerability DatabaseCVE-2023-42366

CVE-2023-42366: 
NixOS vulnerability analysis and mitigation

Overview

A heap-buffer-overflow vulnerability was discovered in BusyBox version 1.36.1, specifically in the next_token function at awk.c:1159. The vulnerability was reported on November 27, 2023, and affects the BusyBox software package, which is commonly used in embedded Linux systems (NVD, MITRE).

Technical details

The vulnerability is classified as a heap-buffer-overflow issue with a CVSS v3.1 base score of 5.5 (Medium). The attack vector is Local (L), requiring low attack complexity (L) with no privileges required (N), but user interaction is required (R). The scope is unchanged (U), with no impact on confidentiality (N) or integrity (N), but high impact on availability (H) (NVD).

Impact

When successfully exploited, this vulnerability could lead to a Denial of Service (DoS) condition. The heap-buffer-overflow occurs during the processing of AWK commands, potentially causing system instability or crashes (Rapid7, NetApp).

Mitigation and workarounds

As of February 2025, there is no official fix from upstream for this issue. Various Linux distributions and vendors are tracking this vulnerability and have marked it as deferred. System administrators are advised to monitor vendor advisories for updates (Ubuntu).

Additional resources

Source: This report was generated using AI

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