Bugtraq mailing list archives
Re: GNU screen buffer overflow
From: Pavel Kankovsky <peak () argo troja mff cuni cz>
Date: Wed, 3 Dec 2003 20:36:10 +0100 (MET)
On Mon, 1 Dec 2003, Kyle Sallee wrote:
With devpts and libutempter it is possible to install fully functional screen without suid/sgid.Does that mean any program that links with libutempter gains complete suid/sgid root functionality, or only when executing the functions in the libutempter library, please?
This means you do not need setuid root because devpts sets up the slave pty owner and group automatically and you do not need direct access to utmp/wtmp, e.g. via setgid utmp, because libtempter functions call an external setgid utmp helper called utempter to modify those files (the calling process is required to hold a corresponding master pty). --Pavel Kankovsky aka Peak [ Boycott Microsoft--http://www.vcnet.com/bms ] "Resistance is futile. Open your source code and prepare for assimilation."
Current thread:
- Re: GNU screen buffer overflow Mariusz Woloszyn (Dec 01)
- Re: GNU screen buffer overflow Kyle Sallee (Dec 03)
- Re: GNU screen buffer overflow Pavel Kankovsky (Dec 03)
- Re: GNU screen buffer overflow Casper Dik (Dec 03)
- Re: GNU screen buffer overflow Pavel Kankovsky (Dec 03)
- Re: GNU screen buffer overflow Kyle Sallee (Dec 03)