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Date: Wed, 28 Mar 2001 12:40:10 -0300
To: conectiva-updates@papaleguas.conectiva.com.br,
Subject: [CLA-2001:391] Conectiva Linux Security Announcement - openssh
From: secure@conectiva.com.br

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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : openssh
SUMMARY   : Passive traffic analysis
DATE      : 2001-03-28 12:39:00
ID        : CLA-2001:391
RELEVANT
RELEASES  : 5.0, prg graficos, ecommerce, 5.1, 6.0

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DESCRIPTION
 Solar Designer demonstrated[1] that it is possible to do a passive
 analysis on an ssh encrypted connection and obtain important
 information about that connection. In particular, it is possible to
 obtain the number of characters of a password (which can be the login
 password itself or even passwords entered during interactive commands
 such as "su"), type of authentication that was used (password or
 publickey) and the numbers of characters typed in a shell.
 This analysis can, for example, give valuable information that will
 reduce the universe of passwords that have to be tried in a
 brute-force attack.


SOLUTION
 It is recommended that all openssh users upgrade their packages.


DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/openssh-2.5.2p2-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/openssh-clients-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/openssh-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/openssh-askpass-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/openssh-askpass-gnome-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/openssh-server-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/openssh-2.5.2p2-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/openssh-clients-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/openssh-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/openssh-askpass-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/openssh-askpass-gnome-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/openssh-server-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/openssh-2.5.2p2-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/openssh-clients-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/openssh-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/openssh-askpass-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/openssh-askpass-gnome-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/openssh-server-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/openssh-2.5.2p2-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/openssh-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/openssh-askpass-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/openssh-askpass-gnome-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/openssh-clients-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/openssh-server-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/openssh-2.5.2p2-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/openssh-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/openssh-askpass-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/openssh-askpass-gnome-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/openssh-clients-2.5.2p2-1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/openssh-server-2.5.2p2-1cl.i386.rpm


ADDITIONAL INSTRUCTIONS
 Users of Conectiva Linux version 6.0 or higher may use apt to perform 
 upgrades of RPM packages:
 - add the following line to /etc/apt/sources.list if it is not there yet
   (you may also use linuxconf to do this):

 rpm [cncbr] ftp://atualizacoes.conectiva.com.br 6.0/conectiva updates

(replace 6.0 with the correct version number if you are not running CL6.0)

 - 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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