CVE-2023-32762 Information

Description

An issue was discovered in Qt before 5.15.14 6.x before 6.2.9 and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header allowing unencrypted connections to be established even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.

Reference

https://lists.qt-project.org/pipermail/announce/2023-May/000414.html https://github.com/qt/qtbase/commit/1b736a815be0222f4b24289cf17575fc15707305 https://codereview.qt-project.org/c/qt/qtbase/+/476140