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Vulnerability DatabaseCVE-2020-36023
CVE-2020-36023:
NixOS vulnerability analysis and mitigation
Overview
An issue was discovered in freedesktop poppler version 20.12.1 that allows remote attackers to cause a denial of service (DoS) via a crafted PDF file targeting the FoFiType1C::cvtGlyph function (NVD, Debian Security).
Technical details
The vulnerability is classified as a stack overflow issue in the FoFiType1C::cvtGlyph function, which can lead to infinite recursion. The issue has been assigned a CVSS v3.1 base score of 6.5 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability is categorized as CWE-835 (Loop with Unreachable Exit Condition - 'Infinite Loop') (NVD, Gitlab Issue).
Impact
When exploited, this vulnerability can result in a denial of service condition through a stack overflow, potentially causing the application to crash. The impact is limited to availability, with no direct effects on confidentiality or integrity of the system (NVD).
Mitigation and workarounds
The vulnerability has been fixed in subsequent versions of poppler. Various distributions have released security updates, including Debian which addressed this in version 0.71.0-5+deb10u2 (Debian LTS).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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