[SECURITY] [DLA 4278-1] mupdf security update
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Debian LTS Advisory DLA-4278-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
August 22, 2025 https://wiki.debian.org/LTS
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Package : mupdf
Version : 1.17.0+ds1-2+deb11u1
CVE ID : CVE-2020-21896
It was discovered that there was a potential use after free
vulnerability in mupdf, a lightweight PDF viewer. This could have
allowed remote attackers to cause a denial of service attack when
opening a maliciously-crafted PDF file.
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/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
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