CVE-2023-43114 Denial of service in n/a

What is CVE-2023-43114?

CVE-2023-43114 is a medium-severity denial of service vulnerability in Qt Qt, published on 18 Sep 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 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.

Which versions are affected by CVE-2023-43114?

It affects 1 product.

Products include Qt Qt.

How do I fix CVE-2023-43114?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-43114 being exploited?

There is no known exploitation of CVE-2023-43114 in the wild and no public exploit code.

Other vulnerabilities in Qt Qt

• CVE-2020-12267 Use after free in n/a Critical 9.8
• CVE-2017-10904 Command injection in Qt for Android Critical 9.8
• CVE-2011-3194 Memory corruption in n/a Critical 9.3
• CVE-2022-40983 Integer overflow in Qt High 8.8
• CVE-2022-43591 Memory corruption in Qt High 8.8

All Qt Qt vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qqpv-296g-7w66, UBUNTU-CVE-2023-43114, openSUSE-SU-2024:13308-1.