USN-8352-1: LibreOffice vulnerability

Publication date

1 June 2026

Overview

LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file.


Packages

Details

Duc Anh Nguyen discovered that LibreOffice incorrectly handled mismatched
encryption salt parameters in crafted OOXML documents. An attacker could
use this issue to cause LibreOffice to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Duc Anh Nguyen discovered that LibreOffice incorrectly handled mismatched
encryption salt parameters in crafted OOXML documents. An attacker could
use this issue to cause LibreOffice to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions

This update uses a new upstream release, which includes additional bug fixes. 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
26.04 LTS resolute libreoffice –  4:26.2.3.2-0ubuntu0.26.04.1
25.10 questing libreoffice –  4:25.8.7-0ubuntu0.25.10.1

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