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		 NetBSD Security Note 20050708-1
		 ===============================

Topic:		NetBSD base system not vulnerable to zlib overflow
		pkgsrc did provide vulnerable versions

A zlib buffer overflow has been announced. 

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2005-2096
 
The NetBSD Security Officer team was aware of this issue, and would 
like to reassure users that the NetBSD base system is not vulnerable. 

The bug was introduced in changes to zlib after 1.1.4, the latest
version supplied in the base install of NetBSD.

The vulnerable version, 1.2.2 has been available from pkgsrc. 

Users of the audit-packages tool will already have noticed that version
is marked as vulnerable, and the 1.2.2nb1 update addresses the issue.

Other pkgsrc users are encouraged to update devel/zlib to 1.2.2nb1, as
well as to take advantage of the security/audit-packages infrastructure.


Thanks To
=========

Tavis Ormandy
Colin Percival
Mark Adler
Matthias Drochner
Matthias Scheler

More Information
================

Information about NetBSD and NetBSD security can be found at
http://www.NetBSD.org/ and http://www.NetBSD.org/Security/.

Copyright 2005, The NetBSD Foundation, Inc.  All Rights Reserved.
Redistribution permitted only in full, unmodified form.

$NetBSD: NetBSD-SN20050708-1.txt,v 1.1 2005/07/08 15:54:11 david Exp $

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