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-rw-r--r--meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch52
-rw-r--r--meta/recipes-bsp/grub/grub2.inc1
2 files changed, 53 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch b/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch
new file mode 100644
index 0000000000..f9252e9c22
--- /dev/null
+++ b/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch
@@ -0,0 +1,52 @@
1Upstream-Status: Accepted
2Signed-off-by: Awais Belal <awais_belal@mentor.com>
3
4From 451d80e52d851432e109771bb8febafca7a5f1f2 Mon Sep 17 00:00:00 2001
5From: Hector Marco-Gisbert <hecmargi@upv.es>
6Date: Wed, 16 Dec 2015 04:57:18 +0000
7Subject: Fix security issue when reading username and password
8
9This patch fixes two integer underflows at:
10 * grub-core/lib/crypto.c
11 * grub-core/normal/auth.c
12
13CVE-2015-8370
14
15Signed-off-by: Hector Marco-Gisbert <hecmargi@upv.es>
16Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es>
17Also-By: Andrey Borzenkov <arvidjaar@gmail.com>
18---
19diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c
20index 010e550..683a8aa 100644
21--- a/grub-core/lib/crypto.c
22+++ b/grub-core/lib/crypto.c
23@@ -470,7 +470,8 @@ grub_password_get (char buf[], unsigned buf_size)
24
25 if (key == '\b')
26 {
27- cur_len--;
28+ if (cur_len)
29+ cur_len--;
30 continue;
31 }
32
33diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c
34index c6bd96e..8615c48 100644
35--- a/grub-core/normal/auth.c
36+++ b/grub-core/normal/auth.c
37@@ -174,8 +174,11 @@ grub_username_get (char buf[], unsigned buf_size)
38
39 if (key == '\b')
40 {
41- cur_len--;
42- grub_printf ("\b");
43+ if (cur_len)
44+ {
45+ cur_len--;
46+ grub_printf ("\b");
47+ }
48 continue;
49 }
50
51--
52cgit v0.9.0.2
diff --git a/meta/recipes-bsp/grub/grub2.inc b/meta/recipes-bsp/grub/grub2.inc
index 312771b47f..a8c41f8e28 100644
--- a/meta/recipes-bsp/grub/grub2.inc
+++ b/meta/recipes-bsp/grub/grub2.inc
@@ -27,6 +27,7 @@ SRC_URI = "ftp://ftp.gnu.org/gnu/grub/grub-${PV}.tar.gz \
27 file://0001-Unset-need_charset_alias-when-building-for-musl.patch \ 27 file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
28 file://0001-parse_dhcp_vendor-Add-missing-const-qualifiers.patch \ 28 file://0001-parse_dhcp_vendor-Add-missing-const-qualifiers.patch \
29 file://grub2-fix-initrd-size-bug.patch \ 29 file://grub2-fix-initrd-size-bug.patch \
30 file://0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch \
30 " 31 "
31 32
32DEPENDS = "flex-native bison-native xz" 33DEPENDS = "flex-native bison-native xz"