Fedora 33 update for mupdf, python-PyMuPDF, zathura-pdf-mupdf



| Updated: 2025-04-25
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-26519
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

zathura-pdf-mupdf
Operating systems & Components / Operating system package or component

python-PyMuPDF
Operating systems & Components / Operating system package or component

mupdf
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU47952

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-26519

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Artifex MuPDF before 1.18.0 has a heap based buffer over-write when parsing JBIG2 files allowing attackers to cause a denial of service.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 33

zathura-pdf-mupdf: before 0.3.6-4.fc33

python-PyMuPDF: before 1.18.0-1.fc33

mupdf: before 1.18.0-2.fc33

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2020-972ad7c8a8


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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