SB2023082255 - Remote code execution in Artifex Software MuPDF
Published: August 22, 2023 Updated: October 17, 2025
Security Bulletin ID
SB2023082255
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2020-21896)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the svg_dev_text_span_as_paths_defs() function in source/fitz/svg-device.c when handling PDF files. A remote attacker can pass specially crafted input to the application and compromise the affected system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.