Fix CVE-2017-6410, "Information Leak when accessing https when using a
malicious PAC file":

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6410
https://www.kde.org/info/security/advisory-20170228-1.txt

Patch copied from upstream source repository:

https://cgit.kde.org/kio.git/commit/?id=f9d0cb47cf94e209f6171ac0e8d774e68156a6e4

From f9d0cb47cf94e209f6171ac0e8d774e68156a6e4 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Tue, 28 Feb 2017 19:00:48 +0100
Subject: Sanitize URLs before passing them to FindProxyForURL

Remove user/password information
For https: remove path and query

Thanks to safebreach.com for reporting the problem

CCMAIL: yoni.fridburg@safebreach.com
CCMAIL: amit.klein@safebreach.com
CCMAIL: itzik.kotler@safebreach.com
---
 src/kpac/script.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/kpac/script.cpp b/src/kpac/script.cpp
index a0235f7..2485c54 100644
--- a/src/kpac/script.cpp
+++ b/src/kpac/script.cpp
@@ -754,9 +754,16 @@ QString Script::evaluate(const QUrl &url)
         }
     }
 
+    QUrl cleanUrl = url;
+    cleanUrl.setUserInfo(QString());
+    if (cleanUrl.scheme() == QLatin1String("https")) {
+        cleanUrl.setPath(QString());
+        cleanUrl.setQuery(QString());
+    }
+
     QScriptValueList args;
-    args << url.url();
-    args << url.host();
+    args << cleanUrl.url();
+    args << cleanUrl.host();
 
     QScriptValue result = func.call(QScriptValue(), args);
     if (result.isError()) {
-- 
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