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Neohapsis > Archives > Bugtraq> 2001-02

From: secureCONECTIVA.COM.BR
Date: Mon Feb 05 2001 - 13:36:29 CST

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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : glibc
SUMMARY : Local root vulnerability in glibc
DATE : 2001-02-05 17:20:00
ID : CLA-2001:379
RELEVANT
RELEASES : 4.0, 4.0es, 4.1, 4.2, 5.0, prg gráficos, ecommerce, 5.1, 6.0

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DESCRIPTION
"glibc" is the main library in a linux system and is used by
virtually all programs out there.
Local vulnerabilities were found in the glibc package shipped with
Conectiva Linux that would allow an attacker to overwrite any file on
the system. Many environment variables were honored when running a
SUID program, and it was shown that even "trusted" libraries could be
used to overwrite files on the system.

SOLUTION
It is recommended that all users upgrade the glibc package
immediately.
Please note that running programs will only use the updated libraries
if they are restarted. If restarting the machine is not possible, we
recommend that at least all programs be restarted in order to use the
new libraries and free the memory used by the previous version.
To restart the init program, run:

/sbin/init u

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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