openssh: CVE-2016-0777 and CVE-2016-0778

Fixes following CVEs:

CVE-2016-0777 OpenSSH: Client Information leak due to use of roaming
connection feature
CVE-2016-0778 OpenSSH: Client buffer-overflow when using roaming
connections

References:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0777
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0778

Backported from:
http://git.yoctoproject.org/cgit/cgit.cgi/poky/patch/
?id=9845a542a76156adb5aef6fd33ad5bc5777acf64

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Tudor Florea <tudor.florea@enea.com>

2 files changed, 59 insertions, 1 deletions

diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2016-0777_CVE-2016-0778.patch b/meta/recipes-connectivity/openssh/openssh/CVE-2016-0777_CVE-2016-0778.patch
new file mode 100644
index 0000000000..4cc462d277
--- /dev/null
+++ b/meta/recipes-connectivity/openssh/openssh/CVE-2016-0777_CVE-2016-0778.patch
@@ -0,0 +1,56 @@
+From e6c85f8889c5c9eb04796fdb76d2807636b9eef5 Mon Sep 17 00:00:00 2001
+From: Damien Miller <djm@mindrot.org>
+Date: Fri, 15 Jan 2016 01:30:36 +1100
+Subject: [PATCH] forcibly disable roaming support in the client
+
+
+Upstream-Status: Backport
+CVE: CVE-2016-0777
+CVE: CVE-2016-0778
+
+[Yocto #8935]
+
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ readconf.c | 5 ++---
+ ssh.c      | 3 ---
+ 2 files changed, 2 insertions(+), 6 deletions(-)
+
+Index: openssh-6.7p1/readconf.c
+===================================================================
+--- openssh-6.7p1.orig/readconf.c
++++ openssh-6.7p1/readconf.c
+@@ -1597,7 +1597,7 @@ initialize_options(Options * options)
+        options->tun_remote = -1;
+        options->local_command = NULL;
+        options->permit_local_command = -1;
+-       options->use_roaming = -1;
++       options->use_roaming = 0;
+        options->visual_host_key = -1;
+        options->ip_qos_interactive = -1;
+        options->ip_qos_bulk = -1;
+@@ -1768,8 +1768,7 @@ fill_default_options(Options * options)
+                options->tun_remote = SSH_TUNID_ANY;
+        if (options->permit_local_command == -1)
+                options->permit_local_command = 0;
+-       if (options->use_roaming == -1)
+-               options->use_roaming = 1;
++       options->use_roaming = 0;
+        if (options->visual_host_key == -1)
+                options->visual_host_key = 0;
+        if (options->ip_qos_interactive == -1)
+Index: openssh-6.7p1/ssh.c
+===================================================================
+--- openssh-6.7p1.orig/ssh.c
++++ openssh-6.7p1/ssh.c
+@@ -1800,9 +1800,6 @@ ssh_session2(void)
+                        fork_postauth();
+        }
+ 
+-       if (options.use_roaming)
+-               request_roaming();
+-
+        return client_loop(tty_flag, tty_flag ?
+            options.escape_char : SSH_ESCAPECHAR_NONE, id);
+ }
diff --git a/meta/recipes-connectivity/openssh/openssh_6.6p1.bb b/meta/recipes-connectivity/openssh/openssh_6.6p1.bb
index 3807583d95..0ce84aa70e 100644
--- a/meta/recipes-connectivity/openssh/openssh_6.6p1.bb
+++ b/meta/recipes-connectivity/openssh/openssh_6.6p1.bb
@@ -26,7 +26,9 @@ SRC_URI = "ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.tar.
            file://openssh-CVE-2014-2532.patch \
            file://openssh-CVE-2014-2653.patch \
            file://auth2-none.c-avoid-authenticate-empty-passwords-to-m.patch \
-           file://openssh-ptest-fix-sshconnect.patch"
+           file://openssh-ptest-fix-sshconnect.patch \
+           file://CVE-2016-0777_CVE-2016-0778.patch \
+           "
 
 PAM_SRC_URI = "file://sshd"