[CLA-2001:439] Conectiva Linux Security Announcement - postfix

From: secure@conectiva.com.br
Date: 11/26/01

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Date: Mon, 26 Nov 2001 15:50:56 -0200
Message-Id: <200111261750.PAA31043@frajuto.distro.conectiva>
To: conectiva-updates@papaleguas.conectiva.com.br, linuxlist@securityportal.com, lwn@lwn.net, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com
Subject: [CLA-2001:439] Conectiva Linux Security Announcement - postfix
From: secure@conectiva.com.br

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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : postfix
SUMMARY : Possivble remote DoS
DATE : 2001-11-26 15:47:00
ID : CLA-2001:439
RELEVANT
RELEASES : 5.0, prg graficos, ecommerce, 5.1, 6.0, 7.0

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DESCRIPTION
Postfix is a widely used MTA (Mail Transport Agent, sometimes called
just an email or SMTP server).

Wietse Venema reported[1] a vulnerability[2] in Postfix where a
remote attacker could cause a DoS (denial of service) condition on
the server. The SMTP session log could grow to an unreasonable size
and possibly exhaust the server's memory if no other limits were in
place.

SOLUTION
It is recommended that all Postfix users upgrade their servers.

REFERENCES
1. http://www.securityfocus.com/archive/1/240354
2. http://www.securityfocus.com/bid/3544
3. http://www.postfix.org

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

- -------------------------------------------------------------------------
subscribe: conectiva-updates-subscribe@papaleguas.conectiva.com.br
unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br
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Previous message: Jouko Pynnonen: "File extensions spoofable in MSIE download dialog"
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