diff options
Diffstat (limited to 'meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch')
-rw-r--r-- | meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch b/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch new file mode 100644 index 0000000..9ddd7a6 --- /dev/null +++ b/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch @@ -0,0 +1,50 @@ +Upstream-Status: Accepted +Signed-off-by: Awais Belal <awais_belal@mentor.com> + +From 451d80e52d851432e109771bb8febafca7a5f1f2 Mon Sep 17 00:00:00 2001 +From: Hector Marco-Gisbert <hecmargi@upv.es> +Date: Wed, 16 Dec 2015 04:57:18 +0000 +Subject: 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 <hecmargi@upv.es> +Signed-off-by: Ismael Ripoll-Ripoll <iripoll@disca.upv.es> +Also-By: Andrey Borzenkov <arvidjaar@gmail.com> +--- +Index: grub-2.00/grub-core/lib/crypto.c +=================================================================== +--- grub-2.00.orig/grub-core/lib/crypto.c ++++ grub-2.00/grub-core/lib/crypto.c +@@ -458,7 +458,8 @@ grub_password_get (char buf[], unsigned + + if (key == '\b') + { +- cur_len--; ++ if (cur_len) ++ cur_len--; + continue; + } + +Index: grub-2.00/grub-core/normal/auth.c +=================================================================== +--- grub-2.00.orig/grub-core/normal/auth.c ++++ grub-2.00/grub-core/normal/auth.c +@@ -174,8 +174,11 @@ grub_username_get (char buf[], unsigned + + if (key == '\b') + { +- cur_len--; +- grub_printf ("\b"); ++ if (cur_len) ++ { ++ cur_len--; ++ grub_printf ("\b"); ++ } + continue; + } + |