CVE-2020-18770
NixOS vulnerability analysis and mitigation

Overview

An issue was discovered in function zzipdiskentrytofile_header in mmapped.c in zziplib 0.13.69. The vulnerability was assigned CVE-2020-18770 and was first reported on March 25, 2019. The affected component is the zziplib library, specifically version 0.13.69 (GitHub Issue, NVD).

Technical details

The vulnerability exists in the zzipdiskentrytofile_header function within the mmapped.c file of zziplib. The issue manifests as an invalid memory access problem. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (Medium) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating local access vector, low attack complexity, no privileges required, and high impact on availability (NVD).

Impact

The vulnerability leads to a denial-of-service condition when exploited. The CVSS scoring indicates that while there is no impact on confidentiality or integrity, there is a high impact on system availability (NVD).

Additional resources


SourceThis report was generated using AI

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