openwrt/package/boot/grub2/patches/300-CVE-2015-8370.patch
Tomasz Maciej Nowak 3fa0f32a68 grub2: bump to 2.04
* GCC 8 and 9 support.
* Gnulib integration overhaul.
* RISC-V support.
* Xen PVH support.
* Native UEFI secure boot support.
* UEFI TPM driver.
* New IEEE 1275 obdisk driver.
* Btrfs RAID 5 and RIAD 6 support.
* bootin from F2FS support.
* PARTUUID support.
* VLAN support.
* Native DHCP support.
* Many ARM and ARM64 fixes.
* Many SPARC fixes.
* Many IEEE 1275 fixes.
* ...and tons of other fixes and cleanups...

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
2019-09-01 18:38:05 +02:00

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Diff

From 0000000000000000000000000000000000000000 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(-)
--- a/grub-core/lib/crypto.c
+++ b/grub-core/lib/crypto.c
@@ -468,7 +468,7 @@ grub_password_get (char buf[], unsigned
break;
}
- if (key == '\b')
+ if (key == '\b' && cur_len)
{
if (cur_len)
cur_len--;
--- a/grub-core/normal/auth.c
+++ b/grub-core/normal/auth.c
@@ -172,7 +172,7 @@ grub_username_get (char buf[], unsigned
break;
}
- if (key == GRUB_TERM_BACKSPACE)
+ if (key == GRUB_TERM_BACKSPACE && cur_len)
{
if (cur_len)
{