diff -Nru openssh-5.9p1/debian/changelog openssh-5.9p1/debian/changelog
--- openssh-5.9p1/debian/changelog	2015-08-14 13:11:24.000000000 +0000
+++ openssh-5.9p1/debian/changelog	2015-08-18 01:53:20.000000000 +0000
@@ -1,3 +1,11 @@
+openssh (1:5.9p1-5ubuntu1.7) precise-security; urgency=medium
+
+  * SECURITY REGRESSION: random auth failures because of uninitialized
+    struct field (LP: #1485719)
+    - debian/patches/CVE-2015-5600-2.patch:
+
+ -- Marc Deslauriers <marc.deslauriers@ubuntu.com>  Mon, 17 Aug 2015 21:53:19 -0400
+
 openssh (1:5.9p1-5ubuntu1.6) precise-security; urgency=medium
 
   * SECURITY UPDATE: possible user impersonation via PAM support
diff -Nru openssh-5.9p1/debian/patches/CVE-2015-5600-2.patch openssh-5.9p1/debian/patches/CVE-2015-5600-2.patch
--- openssh-5.9p1/debian/patches/CVE-2015-5600-2.patch	1970-01-01 00:00:00.000000000 +0000
+++ openssh-5.9p1/debian/patches/CVE-2015-5600-2.patch	2015-08-18 01:53:15.000000000 +0000
@@ -0,0 +1,16 @@
+Description: fix random auth failures because of uninitialized struct field
+Author: Benn Sundsrud <benn.sundsrud@gmail.com>
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1485719
+
+Index: openssh-6.6p1/auth2-chall.c
+===================================================================
+--- openssh-6.6p1.orig/auth2-chall.c	2015-08-17 21:52:45.843249437 -0400
++++ openssh-6.6p1/auth2-chall.c	2015-08-17 21:52:45.843249437 -0400
+@@ -131,6 +131,7 @@
+ 	kbdintctxt->ctxt = NULL;
+ 	kbdintctxt->device = NULL;
+ 	kbdintctxt->nreq = 0;
++	kbdintctxt->devices_done = 0;
+ 
+ 	return kbdintctxt;
+ }
diff -Nru openssh-5.9p1/debian/patches/series openssh-5.9p1/debian/patches/series
--- openssh-5.9p1/debian/patches/series	2015-08-14 13:06:58.000000000 +0000
+++ openssh-5.9p1/debian/patches/series	2015-08-18 01:53:15.000000000 +0000
@@ -54,3 +54,4 @@
 pam-security-1.patch
 pam-security-2.patch
 CVE-2015-5352.patch
+CVE-2015-5600-2.patch