diff -Nru xml-security-c-1.7.2/debian/changelog xml-security-c-1.7.2/debian/changelog
--- xml-security-c-1.7.2/debian/changelog	2013-07-11 08:03:26.000000000 +0200
+++ xml-security-c-1.7.2/debian/changelog	2019-02-22 16:30:55.000000000 +0100
@@ -1,3 +1,12 @@
+xml-security-c (1.7.2-2ubuntu3) UNRELEASED; urgency=medium
+
+  * debian/patches/99-xsecsafebuffer.patch: Fix undefined behavior in
+    XSECSafeBuffer that affect ECDSA signature generation. This fix was
+    introduced in serie 2.x, but it was not backported to serie 1.7.x.
+  *
+
+ -- Alejandro Claro <alejandro.claro@smartmatic.com>  Fri, 22 Feb 2019 16:30:42 +0100
+
 xml-security-c (1.7.2-2) unstable; urgency=low
 
   * Upload to unstable.
@@ -260,7 +269,7 @@
     - Provide ability for calling application to define whether references
       are interlocking.
     - Complete implementation of XKMS message set
-    - Methods to allow loading of encrypted data without doing decrypt 
+    - Methods to allow loading of encrypted data without doing decrypt
       and to process a decrypt/encrypt operation without replacing the
       original nodes.
     - Various bug fixes.
diff -Nru xml-security-c-1.7.2/debian/control xml-security-c-1.7.2/debian/control
--- xml-security-c-1.7.2/debian/control	2013-07-11 08:03:26.000000000 +0200
+++ xml-security-c-1.7.2/debian/control	2019-02-22 16:41:00.000000000 +0100
@@ -1,11 +1,12 @@
 Source: xml-security-c
 Section: libs
 Priority: extra
-Maintainer: Debian Shib Team <pkg-shibboleth-devel@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Shib Team <pkg-shibboleth-devel@lists.alioth.debian.org>
 Uploaders: Russ Allbery <rra@debian.org>
 Build-Depends: debhelper (>= 9), dh-autoreconf, libssl-dev (>= 1.0.1),
  libxerces-c-dev, pkg-config
-Standards-Version: 3.9.4
+Standards-Version: 3.9.5
 Homepage: http://santuario.apache.org/cindex.html
 Vcs-Git: git://anonscm.debian.org/pkg-shibboleth/xml-security-c.git
 Vcs-Browser: http://anonscm.debian.org/gitweb/?p=pkg-shibboleth/xml-security-c.git
diff -Nru xml-security-c-1.7.2/debian/patches/99-xsecsafebuffer.patch xml-security-c-1.7.2/debian/patches/99-xsecsafebuffer.patch
--- xml-security-c-1.7.2/debian/patches/99-xsecsafebuffer.patch	1970-01-01 01:00:00.000000000 +0100
+++ xml-security-c-1.7.2/debian/patches/99-xsecsafebuffer.patch	2019-02-22 15:24:54.000000000 +0100
@@ -0,0 +1,16 @@
+## Description: add some description
+## Origin/Author: add some origin or author
+## Bug: bug URL
+Index: xml-security-c-1.7.2/xsec/utils/XSECSafeBuffer.cpp
+===================================================================
+--- xml-security-c-1.7.2.orig/xsec/utils/XSECSafeBuffer.cpp	2019-02-22 15:16:17.000000000 +0100
++++ xml-security-c-1.7.2/xsec/utils/XSECSafeBuffer.cpp	2019-02-22 15:18:04.000000000 +0100
+@@ -639,7 +639,7 @@
+ 
+ 	assert (t != NULL);
+ 
+-	len += XMLString::stringLen(t);
++	len += XMLString::stringLen(t) * size_XMLCh;
+ 	len += (xsecsize_t) (2 * size_XMLCh);
+ 
+ 	checkAndExpand(len);
diff -Nru xml-security-c-1.7.2/debian/patches/series xml-security-c-1.7.2/debian/patches/series
--- xml-security-c-1.7.2/debian/patches/series	2013-07-11 08:03:42.000000000 +0200
+++ xml-security-c-1.7.2/debian/patches/series	2019-02-22 15:15:54.000000000 +0100
@@ -1 +1,2 @@
 debian-changes
+99-xsecsafebuffer.patch