CVE-2023-28100

[CVE catalog]

Severity

High · CVSS 8.6CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Published

Mar 16, 2023, 4:15:12 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.87% · Oct 25, 2026

A flaw was found in Flatpak, a system for building, distributing, and running sandboxed desktop applications on Linux. It contains 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 others. flatpak: TIOCLINUX can send commands outside sandbox if running on a virtual console The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.