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Vulnerability DatabaseCVE-2020-15807

CVE-2020-15807: 
NixOS vulnerability analysis and mitigation

Overview

GNU LibreDWG before version 0.11 contains a vulnerability that allows NULL pointer dereferences via crafted input files. The vulnerability was discovered and reported on January 14, 2020, and is tracked as CVE-2020-15807. This security issue affects the LibreDWG library, which is used for handling DWG files (LibreDWG Issue).

Technical details

The vulnerability manifests as a NULL pointer dereference in the add_MLINESTYLE_lines function within src/in_dxf.c at line 1462. The issue occurs during the processing of DXF files when converting them to DWG format. The bug can be triggered using the dxf2dwg utility with specially crafted input files (LibreDWG Issue).

Impact

When exploited, this vulnerability can cause the application to crash due to the NULL pointer dereference, potentially leading to a denial of service condition (LibreDWG Issue).

Exploitability

The vulnerability can be triggered by processing specially crafted DXF files using the dxf2dwg conversion utility. A proof of concept has been demonstrated that reliably triggers the NULL pointer dereference (LibreDWG Issue).

Mitigation and workarounds

Users should upgrade to LibreDWG version 0.11 or later which contains fixes for this vulnerability (MITRE CVE).

Additional resources

Source: This report was generated using AI

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