From owner-freebsd-bugs@FreeBSD.ORG  Thu Jul 12 02:40:01 2012
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id DEF5F106564A
	for <freebsd-bugs@hub.freebsd.org>;
	Thu, 12 Jul 2012 02:40:01 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 218288FC0C
	for <freebsd-bugs@hub.freebsd.org>;
	Thu, 12 Jul 2012 02:40:01 +0000 (UTC)
Received: from freefall.freebsd.org (localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q6C2e1mW023287
	for <freebsd-bugs@freefall.freebsd.org>; Thu, 12 Jul 2012 02:40:01 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q6C2e0vQ023286;
	Thu, 12 Jul 2012 02:40:01 GMT (envelope-from gnats)
Resent-Date: Thu, 12 Jul 2012 02:40:01 GMT
Resent-Message-Id: <201207120240.q6C2e0vQ023286@freefall.freebsd.org>
Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer)
Resent-To: freebsd-bugs@FreeBSD.org
Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org,
	Arnaud Lacombe <lacombar@gmail.com>
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 1BD8A1065672
	for <freebsd-gnats-submit@FreeBSD.org>;
	Thu, 12 Jul 2012 02:31:04 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22])
	by mx1.freebsd.org (Postfix) with ESMTP id 0737A8FC15
	for <freebsd-gnats-submit@FreeBSD.org>;
	Thu, 12 Jul 2012 02:31:04 +0000 (UTC)
Received: from red.freebsd.org (localhost [127.0.0.1])
	by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q6C2V3uT000108
	for <freebsd-gnats-submit@FreeBSD.org>; Thu, 12 Jul 2012 02:31:03 GMT
	(envelope-from nobody@red.freebsd.org)
Received: (from nobody@localhost)
	by red.freebsd.org (8.14.4/8.14.4/Submit) id q6C2V34N000106;
	Thu, 12 Jul 2012 02:31:03 GMT (envelope-from nobody)
Message-Id: <201207120231.q6C2V34N000106@red.freebsd.org>
Date: Thu, 12 Jul 2012 02:31:03 GMT
From: Arnaud Lacombe <lacombar@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-3.1
Cc: 
Subject: misc/169796: kenv(1) output is unreadable
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 12 Jul 2012 02:40:02 -0000


>Number:         169796
>Category:       misc
>Synopsis:       kenv(1) output is unreadable
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jul 12 02:40:00 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Arnaud Lacombe
>Release:        many.
>Organization:
n/a
>Environment:
FreeBSD coltar 9.0-STABLE FreeBSD 9.0-STABLE
>Description:
Output of kenv(1) is not escaped to be safely usable on terminals. Depending their content, variable value might end up being interpreted as terminal command. On 9.0-stable, we ends up having the following being output:

LINES="24"
ansi_caption[1]="ESC[1mBESC[37moot ESC[1m[ENTER]ESC[37m"
ansi_caption[2]="ESC[1mEscESC[37mape to loader prompt"
ansi_caption[4]="ESC[1mAESC[37mCPI Support: ESC[34;1mDisabledESC[37m"
ansi_caption[5]="Boot Safe ESC[1mMESC[37mode: ESC[34;1mNOESC[37m"
ansi_caption[6]="Boot ESC[1mSESC[37mingle User: ESC[34;1mNOESC[37m"
ansi_caption[7]="Boot ESC[1mVESC[37merbose: ESC[34;1mNOESC[37m"
bootfile="kernel"
comconsole_speed="115200"
console="comconsole"
currdev="disk0p2:"

Of course, ESC are not escaped and result in kenv(1)'s being unreadable.
>How-To-Repeat:
# kenv
>Fix:
escape variable content not to be interpreted as terminal command.

>Release-Note:
>Audit-Trail:
>Unformatted: