grub-1:2.02.beta2-6.parabola1: updating revision

* fix CVE-2015-8370: Grub2 Authentication Bypass (FS#47386 -> https://bugs.archlinux.org/task/47386)
* lock grub-extras revision to fix build failure (FS#46165 -> https://bugs.archlinux.org/task/46165)

2 files changed, 55 insertions, 2 deletions

diff --git a/libre/grub/0001-Fix-security-issue-when-reading-username-and-passwor.patch b/libre/grub/0001-Fix-security-issue-when-reading-username-and-passwor.patch
new file mode 100644
index 000000000..aa07f2ffc
--- /dev/null
+++ b/libre/grub/0001-Fix-security-issue-when-reading-username-and-passwor.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
+--- a/grub-core/lib/crypto.c
++++ b/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
+--- a/grub-core/normal/auth.c
++++ b/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/libre/grub/PKGBUILD b/libre/grub/PKGBUILD
index 95204924b..5865ab712 100644
--- a/libre/grub/PKGBUILD
+++ b/libre/grub/PKGBUILD
@@ -351,6 +351,7 @@ _GRUB_EMU_BUILD='0'
 
 _pkgver='2.02'
 _GRUB_GIT_TAG='grub-2.02-beta2'
+_GRUB_EXTRAS_COMMIT=4a56e2c2cc3d78f12f1788c27669a651071dee49
 
 _UNIFONT_VER='6.3.20131217'
 
@@ -371,7 +372,7 @@ pkgname=('grub')
                                    'grub-omap3_beagle_xm' 'grub-omap3_beagle_xm_ab')
 pkgdesc='GNU GRand Unified Bootloader (2), (Parabola rebranded)'
 pkgver='2.02.beta2'
-pkgrel='5.parabola10'
+pkgrel='6.parabola1'
 epoch='1'
 url='https://www.gnu.org/software/grub/'
 arch=('x86_64' 'i686' 'armv7h')
@@ -410,9 +411,10 @@ elif [[ "$CARCH" = 'armv7h' ]]; then
 fi
 
 source=("grub-${_pkgver}::git+git://git.sv.gnu.org/grub.git#tag=${_GRUB_GIT_TAG}"
-        "grub-extras::git+git://git.sv.gnu.org/grub-extras.git#branch=master"
+        "grub-extras::git+git://git.sv.gnu.org/grub-extras.git#commit=${_GRUB_EXTRAS_COMMIT}"
         "http://ftp.gnu.org/gnu/unifont/unifont-${_UNIFONT_VER}/unifont-${_UNIFONT_VER}.bdf.gz"
         "http://ftp.gnu.org/gnu/unifont/unifont-${_UNIFONT_VER}/unifont-${_UNIFONT_VER}.bdf.gz.sig"
+        '0001-Fix-security-issue-when-reading-username-and-passwor.patch'
         'grub-10_linux-20_linux_xen-detect-parabola-initramfs.patch'
         'grub-add-GRUB_COLOR_variables.patch'
         '60_memtest86+'
@@ -428,6 +430,7 @@ md5sums=('SKIP'
          'SKIP'
          '728b7439ac733a7c0d56049adec364c7'
          'SKIP'
+         '9589ec46a04f9bb4d5da987340a4a324'
          '3a9bb9bafe0062388e11f72f0e80ba7e'
          'e506ae4a9f9f7d1b765febfa84e10d48'
          'be55eabc102f2c60b38ed35c203686d6'
@@ -449,6 +452,9 @@ _pkgver() {
 prepare() {
 	cd "${srcdir}/grub-${_pkgver}/"
 
+	msg 'CVE-2015-8370'
+	patch -Np1 -i "${srcdir}/0001-Fix-security-issue-when-reading-username-and-passwor.patch"
+
 	msg 'Patch to detect of Parabola GNU/Linux-libre initramfs images by grub-mkconfig'
 	patch -Np1 -i "${srcdir}/grub-10_linux-20_linux_xen-detect-parabola-initramfs.patch"