SB2023082254 - Memory leak in Artifex Software MuPDF
Published: August 22, 2023 Updated: October 17, 2025
Security Bulletin ID
SB2023082254
CSH Severity
Medium
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) Memory leak (CVE-ID: CVE-2020-26683)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak pdf_new_array() in /pdf/pdf-font-add.c. A remote attacker can force the application to leak memory and perform denial of service attack.
Remediation
Install update from vendor's website.