USN-7923-1: Qt vulnerability

Publication date

11 December 2025

Overview

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


Packages

Details

It was discovered that Qt did not correctly handle certain memory
operations. If a user or automated system were tricked into opening a
specially crafted file, an attacker could possibly use this issue to
cause a denial of service or execute arbitrary code.

It was discovered that Qt did not correctly handle certain memory
operations. If a user or automated system were tricked into opening a
specially crafted file, an attacker could possibly use this issue to
cause a denial of service or 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
22.04 LTS jammy libqt5core5a –  5.15.3+dfsg-2ubuntu0.2+esm2  
libqt5gui5 –  5.15.3+dfsg-2ubuntu0.2+esm2  
20.04 LTS focal libqt5core5a –  5.12.8+dfsg-0ubuntu2.1+esm2  
libqt5gui5 –  5.12.8+dfsg-0ubuntu2.1+esm2  

Reduce your security exposure

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