bugtraq - [CLA-2003:664] Conectiva Security Announcement

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Date: Fri, 27 Jun 2003 12:15:33 -0300
From: Conectiva Updates <secure@...ectiva.com.br>
To: conectiva-updates@...aleguas.conectiva.com.br, lwn@....net,
	bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com,
	linsec@...ts.seifried.org
Subject: [CLA-2003:664] Conectiva Security Announcement - radiusd-cistron


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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : radiusd-cistron
SUMMARY   : Buffer overflow vulnerability
DATE      : 2003-06-27 12:07:00
ID        : CLA-2003:664
RELEVANT
RELEASES  : 7.0, 8, 9

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DESCRIPTION
 Cistron RADIUS is an authentication and accounting system for
 terminal servers that speak the RADIUS (Remote Authentication Dial In
 User Service) protocol.
 
 David Luyer reported[1] a buffer overflow vulnerability in
 radiusd-cistron versions <= 1.6.6 that could allow remote attackers
 to cause a denial of service (DoS) and possibly execute arbitrary
 code in the server context. The vulnerability resides in the handling
 of the NAS-Port attribute, which can be interpreted as a negative
 number, causing a buffer overflow.
 
 The Common Vulnerabilities and Exposures (CVE) project has assigned
 the name CAN-2003-0450 to this issue[2].
 
 This update fixes the problem using a patched version of
 radiusd-cistron 1.6.6.


SOLUTION
 All radius-cistron users should upgrade. This update will
 automatically restart the service if it is already running.
 
 
 REFERENCES:
 1.http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=196063
 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0450
 3.http://distro2.conectiva.com.br/bugzilla/show_bug.cgi?id=8690


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/radiusd-cistron-1.6.6-1U70_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/radiusd-cistron-1.6.6-1U70_2cl.src.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/radiusd-cistron-1.6.6-5U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/radiusd-cistron-1.6.6-5U80_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/radiusd-cistron-1.6.6-13419U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/radiusd-cistron-1.6.6-13419U90_1cl.src.rpm


ADDITIONAL INSTRUCTIONS
 The apt tool can be used to perform RPM packages upgrades:

 - run:                 apt-get update
 - after that, execute: apt-get upgrade

 Detailed instructions reagarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en

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All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at 
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can be
found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en

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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

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Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com

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