CVE-2019-10063

Red Hat statement

This flaw can be exploited by malicious flatpak applications which include the code to exploit the wrong handling of the TIOCSTI ioctl (AV:L). No special action is needed to be performed by the attacker just having the exploit code should be enough for bypassing the sandbox restrictions (AC:L), Also the applications needs to be downloaded and run by the victim (PR:L). The flaw results in code being executed on the host system which is running the sandboxed application therefore this affects the host beyond the sandboxed application (S:C). Lastly considering the worst scenario in which the flatpak is run as root on the host system, this flaw can result in the malicious application running code as root on the host system (CIA:H).