Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-19609
CVE-2020-19609:
NixOS vulnerability analysis and mitigation
Overview
CVE-2020-19609 affects Artifex MuPDF versions before 1.18.0. The vulnerability is a heap-based buffer overflow in the tiffexpandcolormap() function when parsing TIFF files, which was discovered and reported in 2020 (NVD).
Technical details
The vulnerability exists in the tiffexpandcolormap() function within the TIFF file parsing component. The issue occurs when processing TIFF files with specific colormap configurations. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (MEDIUM) and a CVSS v2.0 score of 4.3 (MEDIUM), indicating moderate severity (NVD).
Impact
When successfully exploited, this vulnerability allows attackers to cause a denial of service condition through a heap-based buffer overflow. The impact is primarily on system availability, with no direct impact on confidentiality or integrity (NVD).
Mitigation and workarounds
The vulnerability has been fixed in MuPDF version 1.18.0 and later. Users are advised to upgrade to this version or later to mitigate the vulnerability. For Debian 9 (stretch) users, the fix has been backported in version 1.14.0+ds1-4+deb9u1 (Debian LTS).
Additional resources
Source: This report was generated using AI
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