Skip to content
OpenAdvisories
Medium ALAS2-2023-2134 1 CVE

Moderate: flatpak security update (Amazon Linux 2)

Published Jul 17, 2023 · Updated Jul 19, 2023

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2023-28100: 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.

Fixed packages 5

ReleasePackageFixed in
Amazon Linux · 2 flatpak 0:1.0.9-10.amzn2.0.3
Amazon Linux · 2 flatpak-builder 0:1.0.0-10.amzn2.0.3
Amazon Linux · 2 flatpak-debuginfo 0:1.0.9-10.amzn2.0.3
Amazon Linux · 2 flatpak-devel 0:1.0.9-10.amzn2.0.3
Amazon Linux · 2 flatpak-libs 0:1.0.9-10.amzn2.0.3

Vulnerabilities 1

  • Critical 10.0

    TIOCLINUX can send commands outside sandbox if running on a virtual console

    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 `TIO…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2023-28100.html