-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : openslp SUMMARY : Temporary file creation vulnerability DATE : 2003-08-18 18:49:00 ID : CLA-2003:723 RELEVANT RELEASES : 9 - ------------------------------------------------------------------------- DESCRIPTION OpenSLP[1] is an implementation of the "Service Location Protocol V2", an IETF standards track protocol that provides a framework to allow networking applications to discover the existence, location, and configuration of networked services in enterprise networks. There is a symbolic link vulnerability[2] in the initscript used to control the openslp daemon. The initscript (/etc/rc.d/init.d/slpd) uses '/tmp/route.check' as a temporarily file in an unsafe manner. Since the script is usually called by the root user (to start/stop the service), an attacker could exploit this vulnerability to at least "reset" the content of any file in the system as soon as the "start" action is called. As a standard symlink vulnerabilty, all the attacker needs is to create a /tmp/route.check symbolic link pointing to the target file. This update fixes the problem by using a different initscript that does not use a temporary file. It is important to note that this update brings the latest stable release of openslp: 1.0.11, which contains several other fixes and improvements[3]. SOLUTION All OpenSLP users should upgrade. REFERENCES: 1.http://www.openslp.org 2.http://www.securityfocus.com/archive/1/333823 3.http://sourceforge.net/project/showfiles.php?group_id=1730 UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/9/RPMS/openslp-1.0.11-27287U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/openslp-devel-1.0.11-27287U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/SRPMS/openslp-1.0.11-27287U90_1cl.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 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 - ------------------------------------------------------------------------- Copyright (c) 2003 Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- 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 iD8DBQE/QUpn42jd0JmAcZARAppdAJ9ai2lX0yiwg2V3eSzjFuCUqm1RngCbBiAE jMiOnOGTiX8lOaPD/maP0xE= =S9AD -----END PGP SIGNATURE-----
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