[CLA-2003:723] Conectiva Security Announcement - openslp

From: Conectiva Updates (secure_at_conectiva.com.br)
Date: 08/18/03

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    Date: Mon, 18 Aug 2003 18:51:37 -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 : openslp
    SUMMARY : Temporary file creation vulnerability
    DATE : 2003-08-18 18:49:00
    ID : CLA-2003:723
    RELEVANT
    RELEASES : 9

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    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

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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) 2003 Conectiva Inc.
    http://www.conectiva.com

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