-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : krb5 SUMMARY : Buffer overflow vulnerability in the Kerberos 4 administration daemon DATE : 2002-10-25 20:38:00 ID : CLA-2002:534 RELEVANT RELEASES : 8 - ------------------------------------------------------------------------- DESCRIPTION The "krb5" packages are MIT's[1] implementation of the Kerberos 5 authentication protocol. There is a buffer overflow vulnerability[2][3] in the Kerberos 4 remote administration service (kadmind4) that could be used by a remote attacker to execute arbitrary commands on the server with root privileges. The daemon which implements this service, kadmind4, is included in our krb5-server package, but not used by default. The package defaults to using the kadmind daemon, which is not vulnerable to this problem. Only administrators who explicitly run kadmind4 will be at risk. The authors released an advisory[2] with a patch which fixes the vulnerability. This patch has been applied to the updated packages below. SOLUTION All Kerberos users should upgrade their packages immediately. IMPORTANT: if the kadmind4 daemon is in use, it needs to be manually restarted after upgrading the packages. REFERENCES 1.http://web.mit.edu/Kerberos/www/index.html 2.http://web.mit.edu/Kerberos/www/advisories/MITKRB5-SA-2002-002-kadm4.txt 3.http://www.cert.org/advisories/CA-2002-29.html 4.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1235 DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/8/SRPMS/krb5-1.2.3-3U8_3cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-apps-clients-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-apps-servers-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-client-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-devel-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-devel-static-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-doc-1.2.3-3U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/krb5-server-1.2.3-3U8_3cl.i386.rpm ADDITIONAL INSTRUCTIONS Users of Conectiva Linux version 6.0 or higher may use apt to perform upgrades of RPM packages: - 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 (replace 6.0 with the correct version number if you are not running CL6.0) - 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 - ------------------------------------------------------------------------- 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 - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribeat_private unsubscribe: conectiva-updates-unsubscribeat_private -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE9ucgZ42jd0JmAcZARAn1zAKCFNLJcV73WTS081IgZdKxX/WTdEACggdGd DgFAKZ20FwToaXE5nInULrs= =k2hw -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Wed Nov 06 2002 - 21:15:31 PST