From 0ee1b38bf6cd303d09003b08fdfd50876d394d5b Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Thu, 24 Mar 2016 10:02:04 +0000 Subject: import grub from gentoo --- sys-boot/grub/files/CVE-2015-8370.patch | 54 +++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 sys-boot/grub/files/CVE-2015-8370.patch (limited to 'sys-boot/grub/files/CVE-2015-8370.patch') diff --git a/sys-boot/grub/files/CVE-2015-8370.patch b/sys-boot/grub/files/CVE-2015-8370.patch new file mode 100644 index 00000000..69e419ee --- /dev/null +++ b/sys-boot/grub/files/CVE-2015-8370.patch @@ -0,0 +1,54 @@ +From 451d80e52d851432e109771bb8febafca7a5f1f2 Mon Sep 17 00:00:00 2001 +From: Hector Marco-Gisbert +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 + +CVE-2015-8370 + +Signed-off-by: Hector Marco-Gisbert +Signed-off-by: Ismael Ripoll-Ripoll +Also-By: Andrey Borzenkov +--- + 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..683a8aa 100644 +--- a/grub-core/lib/crypto.c ++++ b/grub-core/lib/crypto.c +@@ -470,7 +470,8 @@ grub_password_get (char buf[], unsigned buf_size) + + if (key == '\b') + { +- cur_len--; ++ if (cur_len) ++ cur_len--; + continue; + } + +diff --git a/grub-core/normal/auth.c b/grub-core/normal/auth.c +index c6bd96e..8615c48 100644 +--- a/grub-core/normal/auth.c ++++ b/grub-core/normal/auth.c +@@ -174,8 +174,11 @@ grub_username_get (char buf[], unsigned buf_size) + + if (key == '\b') + { +- cur_len--; +- grub_printf ("\b"); ++ if (cur_len) ++ { ++ cur_len--; ++ grub_printf ("\b"); ++ } + continue; + } + +-- +2.6.4 + -- cgit v1.2.3