USN-7888-1: MuPDF vulnerabilities

Publication date

25 November 2025

Overview

Several security issues were fixed in MuPDF.


Packages

  • mupdf - A lightweight open source software framework for viewing and converting PDF, XPS, and E-book documents

Details

It was discovered that MuPDF could be made to divide by zero. An attacker
could possibly use this issue to cause a denial of service.
(CVE-2023-51103, CVE-2023-51104, CVE-2023-51105, CVE-2023-51106)

It was discovered that MuPDF incorrectly handled memory under certain
circumstances, which could lead to a NULL pointer dereference. An
attacker could potentially use this issue to cause a denial of service.
(CVE-2024-46657)

It was discovered that MuPDF could enter an infinite recursion when
parsing certain PDF files. An attacker could possibly use this issue to
cause a denial of service. (CVE-2025-46206)

It was discovered that MuPDF could be made to divide by zero. An attacker
could possibly use this issue to cause a denial of service.
(CVE-2023-51103, CVE-2023-51104, CVE-2023-51105, CVE-2023-51106)

It was discovered that MuPDF incorrectly handled memory under certain
circumstances, which could lead to a NULL pointer dereference. An
attacker could potentially use this issue to cause a denial of service.
(CVE-2024-46657)

It was discovered that MuPDF could enter an infinite recursion when
parsing certain PDF files. An attacker could possibly use this issue to
cause a denial of service. (CVE-2025-46206)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
25.04 plucky mupdf –  1.25.1+ds1-5ubuntu0.1
mupdf-tools –  1.25.1+ds1-5ubuntu0.1
24.04 LTS noble mupdf –  1.23.10+ds1-1ubuntu0.1~esm1  
mupdf-tools –  1.23.10+ds1-1ubuntu0.1~esm1  
22.04 LTS jammy mupdf –  1.19.0+ds1-2ubuntu0.1~esm1  
mupdf-tools –  1.19.0+ds1-2ubuntu0.1~esm1  
20.04 LTS focal mupdf –  1.16.1+ds1-1ubuntu1+esm2  
mupdf-tools –  1.16.1+ds1-1ubuntu1+esm2  
18.04 LTS bionic mupdf –  1.12.0+ds1-1ubuntu0.1~esm2  
mupdf-tools –  1.12.0+ds1-1ubuntu0.1~esm2  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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