From 1286cab2c0e8ae93749a71dcfd61936533a2ec50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5rten=20Nordheim?= <marten.nordheim@qt.io>
Date: Fri, 5 May 2023 11:07:26 +0200
Subject: [PATCH 089/147] Hsts: match header names case insensitively
 (CVE-2023-32762)

Header field names are always considered to be case-insensitive.

Pick-to: 6.5 6.5.1 6.2 5.15
Fixes: QTBUG-113392
Change-Id: Ifb4def4bb7f2ac070416cdc76581a769f1e52b43
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 1b736a815be0222f4b24289cf17575fc15707305)

* asturmlechner 2023-05-23: Upstream backport to 5.15 taken from
  https://www.qt.io/blog/security-advisory-qt-network
---
 src/network/access/qhsts.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/network/access/qhsts.cpp b/src/network/access/qhsts.cpp
index 0cef0ad3dc..be7ef7ff58 100644
--- a/src/network/access/qhsts.cpp
+++ b/src/network/access/qhsts.cpp
@@ -364,8 +364,8 @@ quoted-pair    = "\" CHAR
 bool QHstsHeaderParser::parse(const QList<QPair<QByteArray, QByteArray>> &headers)
 {
     for (const auto &h : headers) {
-        // We use '==' since header name was already 'trimmed' for us:
-        if (h.first == "Strict-Transport-Security") {
+        // We compare directly because header name was already 'trimmed' for us:
+        if (h.first.compare("Strict-Transport-Security", Qt::CaseInsensitive) == 0) {
             header = h.second;
             // RFC6797, 8.1:
             //
-- 
2.40.1