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Vulnerability DatabaseCVE-2023-31794

CVE-2023-31794: 
NixOS vulnerability analysis and mitigation

Overview

MuPDF v1.21.1 was discovered to contain an infinite recursion vulnerability in the component pdf_mark_list_push. The vulnerability was assigned CVE-2023-31794 and affects MuPDF version 1.21.1. This security flaw allows attackers to cause a Denial of Service (DoS) condition through a specially crafted PDF file (NVD, Debian Tracker).

Technical details

The vulnerability is classified as an Uncontrolled Recursion (CWE-674) issue. According to the National Vulnerability Database, it 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. The vulnerability specifically involves infinite recursion in the pdf_mark_list_push component when processing certain PDF files (NVD).

Impact

When successfully exploited, this vulnerability can lead to a Denial of Service condition, potentially causing the application to become unresponsive or crash. The impact is limited to availability, with no direct effect on confidentiality or integrity of the system (NVD).

Mitigation and workarounds

The vulnerability has been fixed in MuPDF version 1.22.1+ds1-1 and later releases. Users are advised to upgrade to the patched version to mitigate this security risk. The fix was implemented through a commit in the MuPDF repository (Debian Tracker).

Additional resources

Source: This report was generated using AI

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