diff --git a/srcpkgs/grub/patches/CVE-2015-8370.patch b/srcpkgs/grub/patches/CVE-2015-8370.patch
new file mode 100644
index 00000000000..7e0c1ba81b4
--- /dev/null
+++ b/srcpkgs/grub/patches/CVE-2015-8370.patch
@@ -0,0 +1,47 @@
+From e16eeda1200deabd0d3a4af968d526d62845a85f Mon Sep 17 00:00:00 2001
+From: Hector Marco-Gisbert <hecmargi@upv.es>
+Date: Fri, 13 Nov 2015 16:21:09 +0100
+Subject: [PATCH] Fix security issue when reading username and password
+
+  This patch fixes two integer underflows at:
+    * grub-core/lib/crypto.c
+    * grub-core/normal/auth.c
+
+Resolves: CVE-2015-8370
+
+Signed-off-by: Hector Marco-Gisbert <hecmargi@upv.es>
+Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es>
+---
+ grub-core/lib/crypto.c  | 2 +-
+ grub-core/normal/auth.c | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c
+index 010e550..524a3d8 100644
+--- grub-core/lib/crypto.c
++++ grub-core/lib/crypto.c
+@@ -468,7 +468,7 @@ grub_password_get (char buf[], unsigned buf_size)
+ 	  break;
+ 	}
+ 
+-      if (key == '\b')
++      if (key == '\b' && cur_len)
+ 	{
+ 	  cur_len--;
+ 	  continue;
+diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c
+index c6bd96e..5782ec5 100644
+--- grub-core/normal/auth.c
++++ grub-core/normal/auth.c
+@@ -172,7 +172,7 @@ grub_username_get (char buf[], unsigned buf_size)
+ 	  break;
+ 	}
+ 
+-      if (key == '\b')
++      if (key == '\b' && cur_len)
+ 	{
+ 	  cur_len--;
+ 	  grub_printf ("\b");
+-- 
+2.6.4
+
diff --git a/srcpkgs/grub/template b/srcpkgs/grub/template
index d09a2a003eb..ee444d11430 100644
--- a/srcpkgs/grub/template
+++ b/srcpkgs/grub/template
@@ -1,7 +1,7 @@
 # Template file for 'grub'
 pkgname=grub
 version=2.02~beta2
-revision=1
+revision=2
 hostmakedepends="flex"
 makedepends="libusb-compat-devel ncurses-devel freetype-devel
  liblzma-devel device-mapper-devel font-unifont-bdf fuse-devel"