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Date: Mon, 26 Sep 2016 18:54:09 +0200
From: Jakub Wilk <jwilk@...lk.net>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2016-7545 -- SELinux sandbox escape

* up201407890@...nos.dcc.fc.up.pt, 2016-09-25, 13:49:
>When executing a program via the SELinux sandbox, the nonpriv session can 
>escape to the parent session by using the TIOCSTI ioctl to push characters 
>into the terminal's input buffer, allowing an attacker to escape the sandbox.

Apparently every single program that tries to run stuff with reduced privileges 
falls through this trap.

Are there any use cases for TIOCSTI other than producing exploits?

-- 
Jakub Wilk

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