Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-21815
CVE-2020-21815:
NixOS vulnerability analysis and mitigation
Overview
A null pointer dereference vulnerability exists in GNU LibreDWG version 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114, which can lead to a denial of service through application crash (NVD, CVE).
Technical details
The vulnerability is classified as a NULL Pointer Dereference (CWE-476). The issue occurs in the output_TEXT function at line 114 of dwg2SVG.c. The CVSS v3.1 base score is 6.5 (MEDIUM) with vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The CVSS v2.0 base score is 4.3 (MEDIUM) with vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (NVD).
Impact
When successfully exploited, this vulnerability results in a denial of service condition through application crash. The vulnerability affects the availability of the system but does not impact confidentiality or integrity (NVD).
Exploitability
The vulnerability can be triggered through the htmlescape function in ../../programs/escape.c:29, which leads to a null pointer dereference when processing certain input in the dwg2SVG program (LibreDWG Issue).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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