oss-security - Re: Request CVE ID for bogofilter base64 decoder heap corruption

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Date: Tue, 6 Jul 2010 15:06:40 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: David Relson <relson@...gesoftware.com>, coley <coley@...re.org>
Subject: Re: Request CVE ID for bogofilter base64 decoder
 heap corruption

Please use CVE-2010-2494

Thanks.

-- 
    JB


----- "Matthias Andree" <matthias.andree@....de> wrote:

> Greetings,
> 
> I am requesting a CVE ID for the issue described below.
> 
> Thanks.
> 
> Best regards
> Matthias Andree
> 
> bogofilter-SA-2010-01
> 
> Topic:		heap corruption overrun in bogofilter/bogolexer
> 
> Announcement:	bogofilter-SA-2010-01
> Writer:		Matthias Andree
> Version:	0.1
> CVE ID:		
> Announced:	
> Category:	vulnerability
> Type:		array index underflow/out of bounds write through invalid
> input
> Impact:		heap corruption, application crash
> Credits:	Julius Plenz
> Danger:		medium
> URL:	
> http://bogofilter.sourceforge.net/security/bogofilter-SA-2010-01
> 
> Affected:	bogofilter <= 1.2.1
> 		SVN before 2010-07-03 08:40 UTC
> 
> Not affected:	bogofilter 1.2.2	    (to be released)
> 
> 1. Background
> =============
> 
> Bogofilter is a software package for classifying a message as spam or
> non-spam.  It uses a data base to store words and must be trained
> which messages are spam and non-spam. It uses the probabilities of
> individual words for classifying the message.
> 
> Note that the bogofilter project is issuing security announcements
> only
> for current "stable" releases, and not necessarily for past "stable"
> releases.
> 
> 2. Problem description
> ======================
> 
> Bogofilter's/bogolexer's base64 could overwrite memory before its
> heap
> buffer if the base64 input started with an equals sign, such as
> through
> misdeclaration of quoted-printable as base64.
> 
> 3. Impact
> =========
> 
> Vulnerable bogofilter and bogolexer applications can corrupt their
> heap and
> crash. The consequences are dependent on the local configuration,
> memory
> layout and operating system features.
> 
> 4. Solution
> ===========
> 
> Upgrade your bogofilter to version 1.2.2 (or a newer release).
> 
> bogofilter is available from SourceForge:
> 
> <https://sourceforge.net/project/showfiles.php?group_id=62265>
> 
> A. Copyright, License and Warranty
> ==================================
> 
> (C) Copyright 2010 by Matthias Andree, <matthias.andree@....de>.
> Some rights reserved.
> 
> This work is licenced under the Creative Commons
> Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a
> copy
> of this licence, visit
> http://creativecommons.org/licenses/by-nc-nd/3.0/
> or send a letter to Creative Commons, 171 Second Street, Suite 300,
> San
> Francisco, California 94105, USA.
> 
> THIS WORK IS PROVIDED FREE OF CHARGE AND WITHOUT ANY WARRANTIES.
> Use the information herein at your own risk.
> 
> END of bogofilter-SA-2010-01

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