CVE-2020-21833
NixOS vulnerability analysis and mitigation

Overview

A heap-based buffer overflow vulnerability exists in GNU LibreDWG version 0.10 via the read2004section_classes function located in ../../src/decode.c:2440. The vulnerability was assigned CVE-2020-21833 and has a CVSS v3.1 base score of 8.8 (HIGH) (NVD).

Technical details

The vulnerability is classified as CWE-787 (Out-of-bounds Write) and affects the read2004section_classes function in the decode.c file. The CVSS v3.1 vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating network vector, low attack complexity, no privileges required, user interaction required, and high impacts on confidentiality, integrity, and availability (NVD).

Impact

The vulnerability has high severity ratings for confidentiality, integrity, and availability impacts. If successfully exploited, it could allow an attacker to execute arbitrary code, cause information disclosure, or crash the application through a heap-based buffer overflow (NVD).

Mitigation and workarounds

Users should upgrade to a version newer than GNU LibreDWG 0.10. The vulnerability has been reported and tracked in the project's issue system (GitHub Issue).

Additional resources


SourceThis report was generated using AI

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