bugtraq - Re: CAN-2004-0814: Linux terminal layer races

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20041023170343.27193.qmail@paddy.troja.mff.cuni.cz>
Date: Sat, 23 Oct 2004 19:03:43 +0200 (CEST)
From: "Pavel Kankovsky" <peak@...o.troja.mff.cuni.cz>
To: bugtraq@...urityfocus.com
Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: CAN-2004-0814: Linux terminal layer races

On Wed, 20 Oct 2004, Alan Cox wrote:

> Firstly a user can cause crashes and other undefined behaviour by
> issuing a TIOCSETLD ioctl on a terminal interface while another thread

1. Did you mean TIOCSETD?
2. Sigh. TIOCSETD should have been restricted to root (+) since 1999. (*)

(*) Since the "user-rawip-attack" vuln reported by Marc Shaefer.
(+) Perhaps with some workaround to address the problem with processes
setting the ldisc, dropping the root, and being unable to restore ldisc 
back to N_TTY when they exit.

--Pavel Kankovsky aka Peak  [ Boycott Microsoft--http://www.vcnet.com/bms ]
"Resistance is futile. Open your source code and prepare for assimilation."