Ping! BR, Awais
________________________________________ From: openembedded-core-boun...@lists.openembedded.org [openembedded-core-boun...@lists.openembedded.org] on behalf of Belal, Awais Sent: Monday, December 28, 2015 3:40 PM To: openembedded-core@lists.openembedded.org Subject: [OE-core] [fido][PATCH] grub2: Fix CVE-2015-8370 http://git.savannah.gnu.org/cgit/grub.git/commit/?id=451d80e52d851432e109771bb8febafca7a5f1f2 Signed-off-by: Awais Belal <awais_be...@mentor.com> --- ...E-2015-8370-Grub2-user-pass-vulnerability.patch | 52 ++++++++++++++++++++++ meta/recipes-bsp/grub/grub2.inc | 1 + 2 files changed, 53 insertions(+) create mode 100644 meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch 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..1661f64 --- /dev/null +++ b/meta/recipes-bsp/grub/files/0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch @@ -0,0 +1,52 @@ +Upstream-Status: Accepted +Signed-off-by: Awais Belal <awais_be...@mentor.com> + +From 451d80e52d851432e109771bb8febafca7a5f1f2 Mon Sep 17 00:00:00 2001 +From: Hector Marco-Gisbert <hecma...@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 <hecma...@upv.es> +Signed-off-by: Ismael Ripoll-Ripoll <irip...@disca.upv.es> +Also-By: Andrey Borzenkov <arvidj...@gmail.com> +--- +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; + } + +-- +cgit v0.9.0.2 diff --git a/meta/recipes-bsp/grub/grub2.inc b/meta/recipes-bsp/grub/grub2.inc index 8e733ec..c281098 100644 --- a/meta/recipes-bsp/grub/grub2.inc +++ b/meta/recipes-bsp/grub/grub2.inc @@ -25,6 +25,7 @@ SRC_URI = "ftp://ftp.gnu.org/gnu/grub/grub-${PV}.tar.gz \ file://grub-efi-allow-a-compilation-without-mcmodel-large.patch \ file://grub-efi-fix-with-glibc-2.20.patch \ file://0001-parse_dhcp_vendor-Add-missing-const-qualifiers.patch \ + file://0001-Fix-CVE-2015-8370-Grub2-user-pass-vulnerability.patch \ " DEPENDS = "flex-native bison-native xz" -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core