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.
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
- ------------------------------------------------------------------------
-
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
- ------------------------------------------------------------------------
-
All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en
- ------------------------------------------------------------------------
-
Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com
Hash: SHA1
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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_1c
l.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/radiusd-cistron-1.6.6-5U80_1
cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/radiusd-cistron-1.6.6-13419U9
0_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/radiusd-cistron-1.6.6-13419U
90_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
- ------------------------------------------------------------------------
-
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
- ------------------------------------------------------------------------
-
All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en
- ------------------------------------------------------------------------
-
Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com
- ------------------------------------------------------------------------
-
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