CVE-2020-21896

Published: Aug 22, 2023Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.

Affected (1)

Products: Artifex: Mupdf

Artifex

1 product

Mupdf

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Artifex Mupdf	Version 1.16.0

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

http://www.ghostscript.com/cgi-bin/findgit.cgi?8719e07834d6a72b6b4131539e49ed1e8e2ff79e

Source: cve@mitre.org

https://bugs.ghostscript.com/show_bug.cgi?id=701294

Source: cve@mitre.org

ExploitIssue TrackingPatchVendor Advisory

https://bugs.ghostscript.com/show_bug.cgi?id=701294

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitIssue TrackingPatchVendor Advisory

https://lists.debian.org/debian-lts-announce/2025/08/msg00017.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.