USN-7631-1: DjVuLibre vulnerability

Publication date

9 July 2025

Overview

DjVuLibre could be made to crash or run programs if it opened a specially crafted file.


Packages

  • djvulibre - DjVu image format library and tools

Details

It was discovered that DjVuLibre incorrectly handled certain memory
operations. If a user or automated system were tricked into processing a
specially crafted DjVu file, a remote attacker could cause applications
to stop responding or crash, resulting in a denial of service, or possibly
execute arbitrary code.

It was discovered that DjVuLibre incorrectly handled certain memory
operations. If a user or automated system were tricked into processing a
specially crafted DjVu file, a remote attacker could cause applications
to stop responding or crash, resulting in a denial of service, or possibly
execute arbitrary code.

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 libdjvulibre21 –  3.5.28-2ubuntu0.25.04.1
24.04 noble libdjvulibre21 –  3.5.28-2ubuntu0.24.04.1
22.04 jammy libdjvulibre21 –  3.5.28-2ubuntu0.22.04.1

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