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Vulnerability DatabaseCVE-2021-28236
CVE-2021-28236:
NixOS vulnerability analysis and mitigation
Overview
LibreDWG version 0.12.3 was discovered to contain multiple NULL pointer dereference vulnerabilities in the out_dxfb.c file. The vulnerability was assigned CVE-2021-28236 and was reported on March 12, 2021 (CVE Mitre).
Technical details
The vulnerability involves four distinct NULL pointer dereference issues in the outdxfb.c file, specifically in functions dxfbtables_write at lines 1872, 1902, 1924, and 1944. These vulnerabilities can be triggered when processing malformed DWG files, leading to program crashes (GitHub Issue).
Impact
When exploited, these vulnerabilities can cause the application to crash due to NULL pointer dereferences, potentially leading to denial of service conditions when processing malformed DWG files (GitHub Issue).
Mitigation and workarounds
The issue was identified in LibreDWG version 0.12.3. Users should upgrade to a patched version of the software when available (Debian Tracker).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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