Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-21678
CVE-2020-21678:
NixOS vulnerability analysis and mitigation
Overview
A global buffer overflow vulnerability was identified in fig2dev version 3.2.7b, specifically in the genmpwritefontmacrolatex component within genmp.c. The vulnerability was assigned CVE-2020-21678 and was discovered in 2020 (CVE Details, MITRE CVE).
Technical details
The vulnerability is a global buffer overflow that occurs when converting a xfig file into mp format. The issue specifically manifests in the genmpwritefontmacrolatex function at line 1274 of genmp.c. The vulnerability has been assigned a CVSS v3.1 Base Score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-120: Buffer Copy without Checking Size of Input (NVD).
Impact
When exploited, this vulnerability allows attackers to cause a denial of service (DOS) condition in the system. The impact is primarily focused on system availability, with no direct impact on confidentiality or integrity (NVD).
Mitigation and workarounds
The vulnerability was fixed in later versions of fig2dev. The fix was implemented through commit [d70e4b] as documented in the project's source repository (SourceForge Ticket).
Additional resources
Source: This report was generated using AI
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