Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-29995
CVE-2023-29995:
NixOS vulnerability analysis and mitigation
Overview
CVE-2023-29995 is a heap overflow vulnerability discovered in NanoMQ version 0.15.0-0, specifically affecting the copyn_utf8_str function within the mqtt_parser.c file. The vulnerability was reported on February 8, 2023, and has been assigned a CVSS v3.1 base score of 7.5 (HIGH) (NVD).
Technical details
The vulnerability is classified as a heap-based buffer overflow (CWE-787: Out-of-bounds Write) that occurs in the copyn_utf8_str function of mqtt_parser.c. The issue manifests when reading beyond allocated memory boundaries, as confirmed through Address Sanitizer testing. The CVSS v3.1 vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating network accessibility with no required privileges or user interaction (NVD, GitHub Issue).
Impact
The vulnerability can lead to heap buffer overflow conditions, potentially resulting in system crashes or denial of service. The CVSS scoring indicates high impact on availability while confidentiality and integrity remain unaffected (NVD).
Additional resources
Source: This report was generated using AI
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