PT-2023-11607 · Artifex+2 · Mupdf+2

Suhwan · Published 2023-08-22 · Updated 2025-10-16 · CVE-2020-21896

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Artifex Software MuPDF version 1.16.0

Description A Use After Free vulnerability in the svg dev text span as paths defs function in source/fitz/svg-device.c allows remote attackers to cause a denial of service via the opening of a crafted PDF file.

Recommendations For Artifex Software MuPDF version 1.16.0, consider disabling the svg dev text span as paths defs function until a patch is available to prevent exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2020-21896

DLA-4278-1

USN-7825-1

Affected Products

Debian

Linuxmint

Mupdf

References · 39

• 🔥 https://bugs.ghostscript.com/show_bug.cgi?id=701294 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3407 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26683 · Security Note
• https://security-tracker.debian.org/tracker/DLA-4278-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-21896 · Security Note
• https://ubuntu.com/security/CVE-2020-21896 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-21896 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-21896 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000036 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-21896 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16647 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3407 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-37220 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000036 · Security Note
• https://osv.dev/vulnerability/DLA-4278-1 · Vendor Advisory