fa8b2484d0
- Pull in fixes for TSC calibration driver preference (prefer pmtimer over PIT) to boot on Apollo Lake systems with no PIT - Fix pmtimer calibration to not take forever to fail on kvm. Signed-off-by: Peter Jones <pjones@redhat.com>
48 lines
1.3 KiB
Diff
48 lines
1.3 KiB
Diff
From 1f03d841b2872f5118fc7cbde39f0f19021d16ae Mon Sep 17 00:00:00 2001
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From: Hector Marco-Gisbert <hecmargi@upv.es>
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Date: Fri, 13 Nov 2015 16:21:09 +0100
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Subject: [PATCH 137/198] Fix security issue when reading username and password
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This patch fixes two integer underflows at:
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* grub-core/lib/crypto.c
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* grub-core/normal/auth.c
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Resolves: CVE-2015-8370
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Signed-off-by: Hector Marco-Gisbert <hecmargi@upv.es>
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Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es>
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---
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grub-core/lib/crypto.c | 2 +-
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grub-core/normal/auth.c | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c
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index ca334d5a4..e6c78d16d 100644
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--- a/grub-core/lib/crypto.c
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+++ b/grub-core/lib/crypto.c
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@@ -468,7 +468,7 @@ grub_password_get (char buf[], unsigned buf_size)
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break;
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}
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- if (key == '\b')
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+ if (key == '\b' && cur_len)
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{
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if (cur_len)
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cur_len--;
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diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c
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index 6be678c0d..c35ce9724 100644
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--- a/grub-core/normal/auth.c
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+++ b/grub-core/normal/auth.c
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@@ -172,7 +172,7 @@ grub_username_get (char buf[], unsigned buf_size)
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break;
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}
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- if (key == GRUB_TERM_BACKSPACE)
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+ if (key == GRUB_TERM_BACKSPACE && cur_len)
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{
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if (cur_len)
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{
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--
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2.14.3
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