Debian alert DLA-4278-1 (mupdf)

From:
             
 
Chris Lamb <lamby@debian.org>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 4278-1] mupdf security update
Date:
             
 
Fri, 22 Aug 2025 09:33:10 -0700
Message-ID:
             
 
<175587932897.266014.6122953543599648365@copycat>
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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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