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Vulnerability DatabaseCVE-2021-28237
CVE-2021-28237:
NixOS vulnerability analysis and mitigation
Overview
LibreDWG version 0.12.3 was discovered to contain a heap-buffer overflow vulnerability in the decode_preR13 function. The vulnerability was identified and reported on March 4, 2021, and was assigned CVE-2021-28237 (CVE Mitre, NVD).
Technical details
The vulnerability is a heap-buffer overflow that occurs in the decodepreR13section function at line 470 of the decode.c file. The issue manifests when processing certain DWG files, where there is no validation of buffer boundaries during the decoding process. This was confirmed through testing with Address Sanitizer (ASAN) which detected a WRITE operation of size 8 at an invalid memory address (GitHub Issue).
Impact
The heap buffer overflow vulnerability could potentially lead to memory corruption, which may result in program crashes or potential arbitrary code execution. The vulnerability affects systems using LibreDWG v0.12.3 for processing DWG files (Debian Tracker).
Additional resources
Source: This report was generated using AI
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