[CLA-2004:854] Conectiva Security Announcement - samba

From: Conectiva Updates (secure_at_conectiva.com.br)
Date: 07/30/04

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Date: Fri, 30 Jul 2004 11:38:58 -0300
To: conectiva-updates@papaleguas.conectiva.com.br, lwn@lwn.net, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com, linsec@lists.seifried.org

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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : samba
SUMMARY : Multiple potential buffer overruns
DATE : 2004-07-30 11:35:00
ID : CLA-2004:854
RELEVANT
RELEASES : 8, 9

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DESCRIPTION
Samba[1] provides SMB/CIFS services (such as file and printer
sharing) used by clients compatible with Microsoft Windows(TM).

Evgeny Demidov noticed that the internal routine used by the Samba
Web Administration Tool (SWAT) to decode the base64 data during HTTP
basic authentication is subject[2] to a buffer overrun caused by an
invalid base64 character. This same code is used internally to
decode the sambaMungedDial attribute value when using the ldapsam
passdb backend and to decode input given to the ntlm_auth tool.

Another buffer overrun problem[3] has been located in the code used
to support the 'mangling method = hash' smb.conf option. Please be
aware that the default setting for this parameter is 'mangling method
= hash2' and therefore not vulnerable.

SOLUTION
It is recommended that all samba users upgrade their packages. This
update will automatically restart the service if it is already
running.

REFERENCES
1.http://www.samba.org/
2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0600
3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0686

ADDITIONAL INSTRUCTIONS
The apt tool can be used to perform RPM packages upgrades:

- run: apt-get update
- after that, execute: apt-get upgrade

Detailed instructions regarding 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://distro.conectiva.com.br/atualizacoes/?idioma=en

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Copyright (c) 2004 Conectiva Inc.
http://www.conectiva.com

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Relevant Pages

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