CVE-2023-43114

qt: corrupted font loaded via QFontDatabase::addApplicationFont{FromData] leads to DoS

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 15, 2023

Updated · November 22, 2025

Description

An issue was discovered in Qt on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.

Statement

This vulnerability only affects Qt on Windows.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-400 · Uncontrolled Resource Consumption