linux-kernel - Re: Security: information leaks in /proc enable keystroke recovery

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

Date:	Sun, 16 Aug 2009 00:44:14 +0000 (UTC)
From:	daw@...berkeley.edu (David Wagner)
To:	linux-kernel@...r.kernel.org
Subject: Re: Security: information leaks in /proc enable keystroke recovery

Theodore Tso  wrote:
> A configuration option which defaults to disabling ESP and EIP would
> be a simple way to prevent this specific instance of information
> leakage.  The problem is there are other files that might reveal
> timing information, but which are very useful for a system
> administrator.  A key example of this is /proc/$pid/wchan, which is
> responsible for the WCHAN column is a ps listing.

If they're useful for system administrators, would making them
readable to root (but not everyone) be enough?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/