Debian: DSA-4390-1: flatpak security update
Summary
It was discovered that Flatpak, an application deployment framework for
desktop apps, insufficiently restricted the execution of "apply_extra"
scripts which could potentially result in privilege escalation.
For the stable distribution (stretch), this problem has been fixed in
version 0.8.9-0+deb9u2.
We recommend that you upgrade your flatpak packages.
For the detailed security status of flatpak please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/flatpak
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org