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Conectiva Linux Advisory: samba

Jul 22, 2004, 20:29 (0 Talkback[s])

CONECTIVA LINUX SECURITY ANNOUNCEMENT

PACKAGE : samba
SUMMARY : Multiple potential buffer overruns
DATE : 2004-07-22 13:01:00
ID : CLA-2004:851
RELEVANT RELEASES : 10


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.

Conectiva Linux versions 8 and 9 are also vulnerable to the second problem and a specific announcement for it is pending.

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

UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/RPMS/libsmbclient-devel-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libsmbclient-devel-static-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libsmbclient0-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-clients-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-common-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-doc-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-server-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-swat-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-testprogs-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vfs-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-clamav-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-fprot-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-fsecure-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-kaspersky-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-mks-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-oav-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-sophos-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-vscan-trend-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/samba-winbind-3.0.4-62749U10_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/SRPMS/samba-3.0.4-62749U10_2cl.src.rpm

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


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