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ubuntu-cpc: secure esp mountpoint (LP: #1881006)

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Change mount option for ubuntu-cpc images from "defaults" to
"umask=0077". ESP partitions might contain sensitive data and
non-root users shouldn't have read access on it.
This commit is contained in:
Gauthier Jolly 2021-03-17 17:01:12 +00:00
parent 6c2b5816c7
commit 8039471375
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2 changed files with 10 additions and 1 deletions
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9
debian/changelog vendored
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@ -1,3 +1,12 @@
livecd-rootfs (2.525.52) UNRELEASED; urgency=medium
* ubuntu-cpc: secure esp mountpoint (LP: #1881006)
Change mount option for ubuntu-cpc images from "defaults" to "umask=0077"
ESP partitions might contain sensitive data and non-root users shouldn't
have read access on it.
-- Gauthier Jolly <gauthier.jolly@canonical.com> Wed, 17 Mar 2021 16:55:37 +0000
livecd-rootfs (2.525.51) bionic; urgency=medium livecd-rootfs (2.525.51) bionic; urgency=medium
[ David Krauser ] [ David Krauser ]

2
live-build/ubuntu-cpc/hooks.d/base/disk-image-uefi.binary
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@ -58,7 +58,7 @@ create_and_mount_uefi_partition() {
mount "${uefi_dev}" "$mountpoint"/boot/efi mount "${uefi_dev}" "$mountpoint"/boot/efi
cat << EOF >> "mountpoint/etc/fstab" cat << EOF >> "mountpoint/etc/fstab"
LABEL=UEFI /boot/efi vfat defaults 0 1 LABEL=UEFI /boot/efi vfat umask=0077 0 1
EOF EOF
} }