Alerts This Week
Warning Icon 1 975
Alerts This Week
Warning Icon 1 975

Ubuntu 24.04 Critical Qt Declarative Resource Exhaustion USN-8357-1

ubuntu
Calendar Grey June 1, 2026
Dist Ubuntu Esm H88
Excessive resource usage in Qt Declarative could lead to a DoS attack. Update your Ubuntu system for a fix.
Qt Declarative could be made to use excessive resources if it received specially crafted input.

Summary

Qt Declarative could be made to use excessive resources if it received

specially crafted input.

Software Description:

- qtdeclarative-opensource-src: Qt 5 declarative modules

Details:

It was discovered that Qt Declarative did not properly validate the

width and height attributes of image tags in the Text component of Qt

Quick. An attacker could possibly use this issue to cause Qt Declarative

to use excessive resources, leading to a denial of service.

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu resource exhaustion QtDeclarative

Update Instructions

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

Ubuntu 24.04 LTS
  libqt5quick5                    5.15.13+dfsg-1ubuntu0.1+esm1
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  libqt5quick5                    5.15.3+dfsg-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  libqt5quick5                    5.12.8-0ubuntu1+esm1
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-8357-1

CVE-2025-12385

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8357-1

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu resource exhaustion QtDeclarative

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here