ÿþpvheader: wHlck8DhilDjPLXvroKfLXJlqWUwq5UyOUnushJMl2qybE0idTVTOxwv0SiKj/0Vzql9YluLQrH+auHyTPYA9NscnODJl1AR4mHFSW54++mWa390jQ4ShePCufy+SNqqFHKyB0f1GHrsaIHxYKumYMO/M3RcmoEz Content-Class: urn:content-classes:message From: "Joseph S. Myers" <jsm@polyomino.org.uk> Date: Tue, 3 Feb 2004 21:01:50 -0800 Mailing-List: contact bugtraq-help@securityfocus.com; run by ezmlm Precedence: bulk List-Id: <bugtraq.list-id.securityfocus.com> List-Post: <mailto:bugtraq@securityfocus.com> List-Help: <mailto:bugtraq-help@securityfocus.com> List-Unsubscribe: <mailto:bugtraq-unsubscribe@securityfocus.com> List-Subscribe: <mailto:bugtraq-subscribe@securityfocus.com> Delivered-To: mailing list bugtraq@securityfocus.com Delivered-To: moderator for bugtraq@securityfocus.com Sender: "Joseph S. Myers" <jsm@polyomino.org.uk> Return-Path: <bugtraq-return-12765-mleebert=diversa.com@securityfocus.com> On Fri, 30 Jan 2004, Stefan Nordhausen wrote: > Solution: > Updating to libtool 1.5.2 (the current stable release) will eliminate > the vulnerability. If you want to stick with your old version of libtool > you can easily fix this bug yourself. In "ltmain.in" (or file "libtool", > whichever applies for you) you should replace the line: > > if $mkdir -p "$tmpdir" && chmod 700 "$tmpdir"; then : > > with > > if $mkdir "$tmpdir" && chmod 700 "$tmpdir"; then : The chmod has a race (that access to the temporary directory could be gained after it is created but before it is chmoded) - which I pointed out when I reported this security bug four years ago <http://www.geocrawler.com/mail/msg.php3?msg_id=3438808&list=405> - so is of limited security value. Alexandre Oliva's patch at that time (<orsnxk8oqu.fsf@garnize.lsd.ic.unicamp.br> on libtool-patches) used umask to avoid that problem, but wasn't committed (an entirely separate patch was committed under that log message). -- Joseph S. Myers jsm@polyomino.org.uk
