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gnu: grub: Add fix for CVE-2015-8730. 

* gnu/packages/patches/grub-CVE-2015-8370.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.
* gnu/packages/grub.scm: Apply patch.
master
Leo Famulari 2015-12-19 18:18:43 -05:00
parent e2cd1d0fb9
commit f0150f8724
3 changed files with 49 additions and 1 deletions
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1
gnu-system.am
View File

@ -497,6 +497,7 @@ dist_patch_DATA = \
gnu/packages/patches/gobject-introspection-cc.patch \
gnu/packages/patches/gobject-introspection-girepository.patch \
gnu/packages/patches/grep-CVE-2015-1345.patch \
gnu/packages/patches/grub-CVE-2015-8370.patch \
gnu/packages/patches/grub-gets-undeclared.patch \
gnu/packages/patches/grub-freetype.patch \
gnu/packages/patches/guile-1.8-cpp-4.5.patch \

4
gnu/packages/grub.scm
View File

@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015 Leo Famulari <leo@famulari.name>
;;;
;;; This file is part of GNU Guix.
;;;
@ -83,7 +84,8 @@
(base32
"0n64hpmsccvicagvr0c6v0kgp2yw0kgnd3jvsyd26cnwgs7c6kkq"))
(patches (list (search-patch "grub-gets-undeclared.patch")
(search-patch "grub-freetype.patch")))))
(search-patch "grub-freetype.patch")
(search-patch "grub-CVE-2015-8370.patch")))))
(build-system gnu-build-system)
(arguments
'(#:configure-flags '("--disable-werror")

45
gnu/packages/patches/grub-CVE-2015-8370.patch Normal file
View File

@ -0,0 +1,45 @@
From 88c9657960a6c5d3673a25c266781e876c181add 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
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");
--
1.9.1