Date: Tue, 5 Dec 2000 18:16:40 -0200
From: secure@CONECTIVA.COM.BR
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: [CLA-2000:350] Conectiva Linux Security Announcement –
bash
CONECTIVA LINUX SECURITY ANNOUNCEMENT
PACKAGE : bash
SUMMARY : Insecure temporary file creation in << redirects
DATE : 2000-12-05 18:14:00
ID : CLA-2000:350
RELEVANT
RELEASES : 4.0, 4.0es, 4.1, 4.2, 5.0, prg gráficos, ecommerce, 5.1, 6.0
DESCRIPTION
Bash is the default shell used in a standard Conectiva Linux
installation. There is a vulnerability regarding the use of
“<<” redirectors. If used, the shell creates a temporary file
in /tmp with a predictable filename (the only variant is the PID).
Additionally, it was not being opened exclusively. This can be used
by an attacker to overwrite arbitrary files in the system. At least
one initialization script (rc.sysinit) uses “<<“, and it is
run as root at boot time.
SOLUTION
All users should upgrade immediately.
DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/4.0/SRPMS/bash-1.14.7-24cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.0/i386/bash-1.14.7-24cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.0es/SRPMS/bash-1.14.7-24cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.0es/i386/bash-1.14.7-24cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.1/SRPMS/bash-1.14.7-24cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.1/i386/bash-1.14.7-24cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/4.2/SRPMS/bash-1.14.7-24cl.src.rpm
ftp://atualizacoes.conectiva.com.br/4.2/i386/bash-1.14.7-24cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/bash-1.14.7-26cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/bash-1.14.7-26cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/bash-1.14.7-29cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/bash-1.14.7-29cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/bash1-1.14.7-31cl.src.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/bash1-1.14.7-31cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/bash-1.14.7-26cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/bash-1.14.7-26cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/bash-1.14.7-26cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/bash-1.14.7-26cl.i386.rpm
ADDITIONAL INSTRUCTIONS
Users of Conectiva Linux version 6.0 or higher may use apt to
perform upgrades:
– 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
- 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 can be
obtained at
http://www.conectiva.com.br/contato