Date: Wed, 13 Jun 2001 16:28:16 -0300
From: [email protected]
To: [email protected], [email protected],
Subject: [CLA-2001:402] Conectiva Linux Security Announcement - exim
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- --------------------------------------------------------------------------
CONECTIVA LINUX SECURITY ANNOUNCEMENT
- --------------------------------------------------------------------------
PACKAGE : exim
SUMMARY : Format string vulnerability in exim
DATE : 2001-06-13 16:27:00
ID : CLA-2001:402
RELEVANT
RELEASES : 6.0
- -------------------------------------------------------------------------
DESCRIPTION
"exim" is a popular mail server (MTA) that is included in many
GNU/Linux distributions.
Megyer Laszlo reported a format bug vulnerability in the exim package
that could lead to a compromise if exim is run as root. This software
is not installed by default on Conectiva Linux 6.0 and, even if
installed, the default configuration is not vulnerable because it
does not include the "headers_check_syntax" option in the
/etc/exim.conf configuration file which is needed to trigger the bug.
If, however, that option is enabled, and exim is also used to process
batched SMTP input (via the -bS command-line option), then the
service becomes vulnerable and a remote attack becomes possible.
SOLUTION
All exim users are urged to upgrade their packages. Please note that
this update will restart exim if the daemon is already running.
REFERENCES
http://www.securityfocus.com/bid/2828/
DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/exim-3.16-4U60_1cl.src.rpmftp://atualizacoes.conectiva.com.br/6.0/RPMS/exim-3.16-4U60_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/6.0/RPMS/exim-doc-3.16-4U60_1cl.i386.rpmftp://atualizacoes.conectiva.com.br/6.0/RPMS/exim-mon-3.16-4U60_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
- -------------------------------------------------------------------------
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
- -------------------------------------------------------------------------
subscribe: [email protected]
unsubscribe: [email protected]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.4 (GNU/Linux)
Comment: For info see http://www.gnupg.org
iD8DBQE7J77P42jd0JmAcZARAgfwAJ9gv11hSHXQ8NaO1GaRSffyE1kFAgCgxQcC
ndH70icT/qohz/W3nqWn2SA=
=0iK0
-----END PGP SIGNATURE-----
