diff -Nru requests-2.2.1/debian/changelog requests-2.2.1/debian/changelog
--- requests-2.2.1/debian/changelog	2015-03-17 23:40:54.000000000 +0000
+++ requests-2.2.1/debian/changelog	2018-10-10 16:27:25.000000000 +0000
@@ -1,3 +1,11 @@
+requests (2.2.1-1ubuntu0.4) trusty-security; urgency=medium
+
+  * SECURITY UPDATE: Creadentials through HTTP Authorization header
+    - debian/patches/CVE-2018-18074.patch: fix in requests/sessions.py.
+    - CVE-2018-18074
+
+ -- Leonidas S. Barbosa <leo.barbosa@canonical.com>  Wed, 10 Oct 2018 13:24:54 -0300
+
 requests (2.2.1-1ubuntu0.3) trusty-proposed; urgency=medium
 
   * SRU, update python3.4 for trusty. LP: #1433324.
diff -Nru requests-2.2.1/debian/patches/CVE-2018-18074.patch requests-2.2.1/debian/patches/CVE-2018-18074.patch
--- requests-2.2.1/debian/patches/CVE-2018-18074.patch	1970-01-01 00:00:00.000000000 +0000
+++ requests-2.2.1/debian/patches/CVE-2018-18074.patch	2018-10-10 16:24:30.000000000 +0000
@@ -0,0 +1,65 @@
+Backported of:
+
+From 3331e2aecdbf575dd60abef4df79c52d78610a83 Mon Sep 17 00:00:00 2001
+From: Bruce Merry <bmerry@ska.ac.za>
+Date: Thu, 28 Jun 2018 16:38:42 +0200
+Subject: [PATCH 1/2] Strip Authorization header whenever root URL changes
+
+Previously the header was stripped only if the hostname changed, but in
+an https -> http redirect that can leak the credentials on the wire
+(#4716). Based on with RFC 7235 section 2.2, the header is now stripped
+if the "canonical root URL" (scheme+authority) has changed, by checking
+scheme, hostname and port.
+
+
+From 857e9b7ac20c3accf4cc328f594aecb8b6a644a6 Mon Sep 17 00:00:00 2001
+From: Bruce Merry <bmerry@ska.ac.za>
+Date: Tue, 14 Aug 2018 13:30:43 +0200
+Subject: [PATCH 2/2] Rework authorization stripping logic as discussed
+
+The exception for http->https upgrade now requires the standard HTTP(S)
+ports to be used, either implicitly (no port specified) or explicitly.
+diff --git a/requests/sessions.py b/requests/sessions.py
+index 6c08be8..96f7330 100644
+--- a/requests/sessions.py
++++ b/requests/sessions.py
+@@ -87,6 +87,22 @@ def merge_hooks(request_hooks, session_hooks, dict_class=OrderedDict):
+ 
+ 
+ class SessionRedirectMixin(object):
++    def should_strip_auth(self, old_url, new_url):
++        """Decide whether Authorization header should be removed when redirecting"""
++        old_parsed = urlparse(old_url)
++        new_parsed = urlparse(new_url)
++        if old_parsed.hostname != new_parsed.hostname:
++            return True
++        # Special case: allow http -> https redirect when using the standard
++        # ports. This isn't specified by RFC 7235, but is kept to avoid
++        # breaking backwards compatibility with older versions of requests
++        # that allowed any redirects on the same host.
++        if (old_parsed.scheme == 'http' and old_parsed.port in (80, None)
++                and new_parsed.scheme == 'https' and new_parsed.port in (443, None)):
++            return False
++        # Standard case: root URI must match
++        return old_parsed.port != new_parsed.port or old_parsed.scheme != new_parsed.scheme
++
+     def resolve_redirects(self, resp, req, stream=False, timeout=None,
+                           verify=True, cert=None, proxies=None):
+         """Receives a Response. Returns a generator of Responses."""
+@@ -192,14 +208,10 @@ class SessionRedirectMixin(object):
+         headers = prepared_request.headers
+         url = prepared_request.url
+ 
+-        if 'Authorization' in headers:
++        if 'Authorization' in headers and self.should_strip_auth(response.request.url, url):
+             # If we get redirected to a new host, we should strip out any
+             # authentication headers.
+-            original_parsed = urlparse(response.request.url)
+-            redirect_parsed = urlparse(url)
+-
+-            if (original_parsed.hostname != redirect_parsed.hostname):
+-                del headers['Authorization']
++            del headers['Authorization']
+ 
+         # .netrc might have more auth for us on our new host.
+         new_auth = get_netrc_auth(url) if self.trust_env else None
diff -Nru requests-2.2.1/debian/patches/series requests-2.2.1/debian/patches/series
--- requests-2.2.1/debian/patches/series	2015-03-17 23:46:15.000000000 +0000
+++ requests-2.2.1/debian/patches/series	2018-10-10 16:24:30.000000000 +0000
@@ -4,3 +4,4 @@
 CVE-2014-1830.patch
 CVE-2015-2296.patch
 use-setuptools-for-wheel-only.diff
+CVE-2018-18074.patch