Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2020-21827
CVE-2020-21827:
NixOS vulnerability analysis and mitigation
Overview
A heap-based buffer overflow vulnerability exists in GNU LibreDWG version 0.10 via the read2004compressed_section function in ../../src/decode.c:2379. The vulnerability was discovered and disclosed in May 2021 (NVD).
Technical details
The vulnerability is classified as a heap-based buffer overflow (CWE-787) that occurs in the read2004compressed_section function. According to the CVSS v3.1 scoring, it has a base score of 7.8 (HIGH) with the vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability requires local access and user interaction to be exploited (NVD).
Impact
If successfully exploited, this vulnerability could lead to unauthorized code execution, memory corruption, and potential system compromise. The high CVSS score indicates severe 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 was identified and tracked in the project's issue system, indicating that fixes would be implemented in subsequent releases (NVD).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management