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Debian: Critical Fix for Mupdf Denial of Service Vulnerability DLA-4278-1

debian lts
Calendar Grey August 22, 2025
Dist Debian Esm H88
Unveil a vital security patch for MuPDF in Debian LTS that tackles a denial of service vulnerability caused by hostile PDF files.
It was discovered that there was a potential use after free vulnerability in mupdf, a lightweight PDF viewer
Topics%20covered

Topics Covered

security advisory denial of service critical debian mupdf

Summary

For Debian 11 bullseye, this problem has been fixed in version
1.17.0+ds1-2+deb11u1.

We recommend that you upgrade your mupdf packages.

For the detailed security status of mupdf please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/mupdf

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS



Severity
critical
Lowest
Low
Medium
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Critical

Package: mupdf
Version: 1.17.0+ds1-2+deb11u1
CVE ID: CVE-2020-21896

Topics%20covered

Topics Covered

security advisory denial of service critical debian mupdf

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