Flaw in Qt's GDI Font Engine Leading to Application Crashes on Windows
CVE-2023-43114

5.5MEDIUM

Key Information:

Vendor

Qt

Status
Qt
Vendor
CVE Published:
18 September 2023

What is CVE-2023-43114?

A vulnerability exists in the Qt framework's handling of corrupted fonts when utilizing the GDI font engine on Windows. It occurs in versions prior to 5.15.16 and in various 6.x versions, specifically through 6.5.x before 6.5.3. When a corrupted font is added using QFontDatabase::addApplicationFontFromData, the absence of adequate length checks can lead to severe application crashes. This flaw emphasizes the need for careful font management within applications utilizing the Qt framework.

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References

https://codereview.qt-project.org/c/qt/qtbase/+/503026

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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