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Vulnerability DatabaseCVE-2020-21842
CVE-2020-21842:
NixOS vulnerability analysis and mitigation
Overview
A heap-based buffer overflow vulnerability (CVE-2020-21842) exists in GNU LibreDWG version 0.10 in the read2004section_revhistory function located at ../../src/decode.c:3051. The vulnerability was discovered and disclosed in May 2021 (NVD).
Technical details
The vulnerability is classified as a heap-based buffer overflow, specifically an out-of-bounds write (CWE-787). It has received a CVSS v3.1 Base Score of 8.8 HIGH with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. This indicates that the vulnerability can be exploited remotely without requiring privileges, though it does require user interaction (NVD).
Impact
If successfully exploited, this vulnerability could lead to unauthorized access to critical data, potential code execution, and system compromise. The high CVSS score indicates severe potential impacts on confidentiality, integrity, and availability of the affected system (NVD).
Mitigation and workarounds
Users should upgrade to a version newer than LibreDWG 0.10. The vulnerability has been addressed in subsequent releases (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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