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Date: Tue, 17 Feb 2004 11:45:31 +1100
From: Steffen Kluge <kluge@...itsu.com.au>
To: bugtraq@...urityfocus.com
Subject: Re: iDEFENSESecurityAdvisory02.10.04:
	XFree86FontInformationFileBufferOverflow

On Sat, 2004-02-14 at 19:58, Dr Andrew C Aitchison wrote:
> I note that this code also ocurs in Xvnc,

The version of Xvnc I've tried behaves somewhat differently, though:

$ perl -e 'print "0" x 1024 . "A" x 96 . "\n"' > fonts.alias
$ Xvnc :10 -fp .
17/02/04 11:28:28 Xvnc version 3.3.3r2+tight1.2.4
17/02/04 11:28:28 Copyright (C) AT&T Laboratories Cambridge.
17/02/04 11:28:28 All Rights Reserved.
17/02/04 11:28:28 See http://www.uk.research.att.com/vnc for information
on VNC
17/02/04 11:28:28 Desktop name 'x11' (my.host:10)
17/02/04 11:28:28 Protocol version supported 3.3
17/02/04 11:28:28 Listening for VNC connections on TCP port 5910
failed to set default font path '.'
Fatal server error:
could not open default font 'fixed'

No signals are caught. Also, Xvnc doesn't need to be suid, and usually
isn't.

Cheers
Steffen.


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