diff options
Diffstat (limited to 'sys-boot/grub')
| -rw-r--r-- | sys-boot/grub/files/CVE-2015-8370.patch | 57 |
1 files changed, 33 insertions, 24 deletions
diff --git a/sys-boot/grub/files/CVE-2015-8370.patch b/sys-boot/grub/files/CVE-2015-8370.patch index 5701b54759fd..69e419ee0c3c 100644 --- a/sys-boot/grub/files/CVE-2015-8370.patch +++ b/sys-boot/grub/files/CVE-2015-8370.patch @@ -1,45 +1,54 @@ -From 88c9657960a6c5d3673a25c266781e876c181add Mon Sep 17 00:00:00 2001 +From 451d80e52d851432e109771bb8febafca7a5f1f2 Mon Sep 17 00:00:00 2001 From: Hector Marco-Gisbert <hecmargi@upv.es> -Date: Fri, 13 Nov 2015 16:21:09 +0100 +Date: Wed, 16 Dec 2015 07:57:18 +0300 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 +This patch fixes two integer underflows at: + * grub-core/lib/crypto.c + * grub-core/normal/auth.c + +CVE-2015-8370 Signed-off-by: Hector Marco-Gisbert <hecmargi@upv.es> Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es> +Also-By: Andrey Borzenkov <arvidjaar@gmail.com> --- - grub-core/lib/crypto.c | 2 +- - grub-core/normal/auth.c | 2 +- - 2 files changed, 2 insertions(+), 2 deletions(-) + grub-core/lib/crypto.c | 3 ++- + grub-core/normal/auth.c | 7 +++++-- + 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/grub-core/lib/crypto.c b/grub-core/lib/crypto.c -index 010e550..524a3d8 100644 +index 010e550..683a8aa 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; - } +@@ -470,7 +470,8 @@ grub_password_get (char buf[], unsigned buf_size) -- if (key == '\b') -+ if (key == '\b' && cur_len) + if (key == '\b') { - cur_len--; +- cur_len--; ++ if (cur_len) ++ cur_len--; continue; + } + diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c -index c6bd96e..5782ec5 100644 +index c6bd96e..8615c48 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; - } +@@ -174,8 +174,11 @@ grub_username_get (char buf[], unsigned buf_size) -- if (key == '\b') -+ if (key == '\b' && cur_len) + if (key == '\b') { - cur_len--; - grub_printf ("\b"); +- cur_len--; +- grub_printf ("\b"); ++ if (cur_len) ++ { ++ cur_len--; ++ grub_printf ("\b"); ++ } + continue; + } + -- -1.9.1 +2.6.4 |