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Neohapsis > Archives > Bugtraq> 2001-02

From: secureCONECTIVA.COM.BR
Date: Thu Feb 08 2001 - 15:41:09 CST

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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : proftpd
SUMMARY : Denial of Service
DATE : 2001-02-08 19:17:00
ID : CLA-2001:380
RELEVANT
RELEASES : 4.0, 4.0es, 4.1, 4.2, 5.0, prg gráficos, ecommerce, 5.1, 6.0

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DESCRIPTION
"proftpd" is a very popular ftp server.
Wojciech Purczynski reported two memory leak problems that could be
used in a DoS attack:
1) A memoy leak will happen everytime a SIZE command is given,
provided that the scoreboard file is not writable. The default
installation is *not* vulnerable to this problem;
2) A similar problem existed with the USER command. Every USER
command would cause the server to use more memory.

Additionally, Przemyslaw Frasunek reported some format string
vulnerabilities which have been fixed.

SOLUTION
It is recommended that all ProFTPd users upgrade to the latest
packages.

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

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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://www.conectiva.com.br/suporte/atualizacoes

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subscribe: conectiva-updates-subscribepapaleguas.conectiva.com.br
unsubscribe: conectiva-updates-unsubscribepapaleguas.conectiva.com.br
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