CVE-2023-28100 Information

Description

Flatpak is a system for building distributing and running sandboxed desktop applications on Linux. Versions prior to 1.10.8 1.12.8 1.14.4 and 1.15.4 contain a vulnerability similar to CVE-2017-5226 but using the TIOCLINUX ioctl command instead of TIOCSTI. If a Flatpak app is run on a Linux virtual console such as /dev/tty1 it can copy text from the virtual console and paste it into the command buffer from which the command might be run after the Flatpak app has exited. Ordinary graphical terminal emulators like xterm gnome-terminal and Konsole are unaffected. This vulnerability is specific to the Linux virtual consoles /dev/tty1 /dev/tty2 and so on. A patch is available in versions 1.10.8 1.12.8 1.14.4 and 1.15.4. As a workaround don’t run Flatpak on a Linux virtual console. Flatpak is primarily designed to be used in a Wayland or X11 graphical environment.

Reference

https://github.com/flatpak/flatpak/security/advisories/GHSA-7qpw-3vjv-xrqp https://github.com/flatpak/flatpak/commit/8e63de9a7d3124f91140fc74f8ca9ed73ed53be9 https://marc.info/?l=oss-security&m=167879021709955&w=2