Fixes the following security issue:
CVE-2022-28737: There's a possible overflow in handle_image() when shim
tries to load and execute crafted EFI executables
https://github.com/advisories/GHSA-hmxr-46w2-jjwh
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
It's time to finally switch over globally to the new spacing format
that we have agreed on for the hash file, with 2 spaces as a separator
between fields.
This commit was mechanically generated using:
find . -type f -name '*.hash' | xargs sed -i 's%^md5[ \t]*\([^ \t]*\)[ \t]*\(.*\)$%md5 \1 \2%'
find . -type f -name '*.hash' | xargs sed -i 's%^sha1[ \t]*\([^ \t]*\)[ \t]*\(.*\)$%sha1 \1 \2%'
find . -type f -name '*.hash' | xargs sed -i 's%^sha256[ \t]*\([^ \t]*\)[ \t]*\(.*\)$%sha256 \1 \2%'
find . -type f -name '*.hash' | xargs sed -i 's%^sha512[ \t]*\([^ \t]*\)[ \t]*\(.*\)$%sha512 \1 \2%'
This commit can easily be backported on the LTS branch by re-running
the same commands, if needed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
- Use the tarball provided by upstream developers instead of the one
generated by Github. Indeed
https://github.com/rhboot/shim/releases/tag/15.4 indicates "As
usual, please use the shim-15.4.tar.bz2 tarball, rather than the
other two archives github automatically produces."
- The tarball now includes the gnu-efi code, so we no longer need to
select gnu-efi and have it as a build dependency. We continue to use
BR2_PACKAGE_GNU_EFI_ARCH_SUPPORTS as we still only build for those
architectures that have gnu-efi support. We also drop the
EFI_INCLUDE, EFI_PATH and LIBDIR variables, as gnu-efi no longer
needs to be searched in STAGING_DIR.
- Drop all four patches, which were backports from upstream.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit adds a package for 'shim', an EFI bootloader for secure
boot chain loading.
While gnu-efi supports 32bit ARM, this is currently broken in shim.
Patches to fix this have been submitted upstream but are not included
here for now.
https://github.com/rhboot/shim/pull/162
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Thomas: use BR2_PACKAGE_GNU_EFI_ARCH_SUPPORTS, add separate depends
on to exclude ARM32 build.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
