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[CLA-2005:917] Conectiva Security Announcement - krb5



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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : krb5
SUMMARY   : Fix for buffer overflow in libkadm5srv
DATE      : 2005-01-13 11:56:00
ID        : CLA-2005:917
RELEVANT
RELEASES  : 9, 10

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DESCRIPTION
 The "krb5" packages are MIT's[1] implementation of the Kerberos 5
 authentication protocol.
 
 Michael Tautschnig noticed that the MIT Kerberos 5 administration
 library (libkadm5srv) contains a heap buffer overflow[2] in password
 history handling code which could be exploited by an authenticated
 user to execute arbitrary code on a Key Distribution Center (KDC)
 host.
 
 For further information about this vulnerability, please refer to MIT
 krb5 Security Advisory 2004-004[3].


SOLUTION
 It is recommended that all Kerberos users in Conectiva Linux upgrade
 their packages. Please note that the service will be automatically
 restarted after the upgrade if it was already running.
 
 Several applications can make use of the Kerberos libraries. Those
 applications have to be restarted as well.
 
 
 REFERENCES
 1.http://web.mit.edu/Kerberos/www/index.html
 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1189
 3.http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2004-004-pwhist.txt


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/SRPMS/krb5-1.3.3-62470U10_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-apps-clients-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-apps-servers-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-client-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-devel-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-devel-static-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-doc-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/krb5-server-1.3.3-62470U10_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/krb5-1.2.7-28721U90_4cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-apps-clients-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-apps-servers-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-client-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-devel-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-devel-static-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-doc-1.2.7-28721U90_4cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/krb5-server-1.2.7-28721U90_4cl.i386.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

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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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