SB20231031123 - Denial of service in MuPDF
Published: October 31, 2023 Updated: November 26, 2025
Security Bulletin ID
SB20231031123
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Uncontrolled Recursion (CVE-ID: CVE-2023-31794)
CWE-ID: CWE-674 - Uncontrolled Recursion
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to an infinite recursion within the pdf_mark_list_push() function. A remote attacker can trick the victim into opening a specially crafted PDF file and render the application unresponsive.
Remediation
Install update from vendor's website.