Announce: Flatpak 1.10.6 (security update)

[Alexander Larsson]

Available at:
  https://github.com/flatpak/flatpak/releases/tag/1.10.6

$ sha256sum flatpak-1.10.6.tar.xz
01d7edb111531ab581d3b434c0ec533ab429b3c2eefa9dc5c1f33f1994ad183a
flatpak-1.10.6.tar.xz

This is a security update that fixes two issues that were found in flatpak:

https://github.com/flatpak/flatpak/security/advisories/GHSA-qpjc-vq3c-572j
(also known as CVE-2021-43860)

This issue is about the possibility for a malicious repository to send
invalid application metadata in a way that hides some of the app
permissions displayed during installation.

https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx

This issue is a problem with how flatpak-builder uses flatpak, that
can cause `flatpak-builder --mirror-screenshots-url` commands to be
allowed to create directories outside of the build directory.

The fix for this is done in flatpak by making the --nofilesystem=host
and --nofilesystem=home more powerful. They previously only removed
access to the particular location, i.e. `--nofilesystem=host` negated
`--filesystem=host`, but not `--filesytem=/some/dir`. This is a minor
change in behavior, as it may change the behavior of an override
with these specific options, however it is likely that the new
behavior was the expected one.

Other changes:

* Fix error handling for the syscalls that are blocked when not using --devel
* Improve diagnostic messages when seccomp rules cannot be applied
* Update Polish translation

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 Alexander Larsson                                Red Hat, Inc
       alexl at redhat.com         alexander.larsson at gmail.com