[openssh] handle crypt() returning NULL (#815993)

[plautrba]

commit 5382ccbe9bca9926147f3bccbd23a3d4aef6e301
Author: Petr Lautrbach <plautrba at redhat.com>
Date:   Mon Aug 6 09:00:49 2012 +0200

    handle crypt() returning NULL (#815993)

 openssh-5.9p1-null-xcrypt.patch |   17 +++++++++++++++++
 openssh.spec                    |    4 ++++
 2 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/openssh-5.9p1-null-xcrypt.patch b/openssh-5.9p1-null-xcrypt.patch
new file mode 100644
index 0000000..50f32ff
--- /dev/null
+++ b/openssh-5.9p1-null-xcrypt.patch
@@ -0,0 +1,17 @@
+Index: auth-passwd.c
+===================================================================
+RCS file: /cvs/openssh/auth-passwd.c,v
+retrieving revision 1.90
+retrieving revision 1.91
+diff -u -r1.90 -r1.91
+--- auth-passwd.c	8 Mar 2009 00:40:28 -0000	1.90
++++ auth-passwd.c	25 Apr 2012 23:51:28 -0000	1.91
+@@ -209,6 +209,7 @@
+ 	 * Authentication is accepted if the encrypted passwords
+ 	 * are identical.
+ 	 */
+-	return (strcmp(encrypted_password, pw_password) == 0);
++	return encrypted_password != NULL &&
++	    strcmp(encrypted_password, pw_password) == 0;
+ }
+ #endif
diff --git a/openssh.spec b/openssh.spec
index daca136..97b6f02 100644
--- a/openssh.spec
+++ b/openssh.spec
@@ -208,6 +208,9 @@ Patch711: openssh-5.9p1-log-usepam-no.patch
 Patch712: openssh-5.9p1-ctr-evp-fast.patch
 # add cavs test binary for the aes-ctr
 Patch713: openssh-5.9p1-ctr-cavstest.patch
+#https://bugzilla.redhat.com/show_bug.cgi?id=815993
+Patch714: openssh-5.9p1-null-xcrypt.patch
+
 
 #http://www.sxw.org.uk/computing/patches/openssh.html
 Patch800: openssh-5.9p1-gsskex.patch
@@ -459,6 +462,7 @@ popd
 %patch711 -p1 -b .log-usepam-no
 %patch712 -p1 -b .evp-ctr
 %patch713 -p1 -b .ctr-cavs
+%patch714 -p0 -b .null-xcrypt
 
 %patch800 -p1 -b .gsskex
 %patch801 -p1 -b .force_krb