[CLA-2003:661] Conectiva Security Announcement - apache

From: Conectiva Updates (secure_at_conectiva.com.br)
Date: 06/16/03

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    Date: Mon, 16 Jun 2003 18:28:07 -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
    - --------------------------------------------------------------------------

    PACKAGE : apache
    SUMMARY : Apache 2 vulnerability
    DATE : 2003-06-16 18:27:00
    ID : CLA-2003:661
    RELEVANT
    RELEASES : 9

    - -------------------------------------------------------------------------

    DESCRIPTION
     Apache[1] is the most popular webserver in use today.
     
     This update addresses two security vulnerabilities which have been
     fixed in the recently released[2] 2.0.46 version:
     
     1) CAN-2003-0245[3]
     iDefense published[5] an advisory about a vulnerability in the APR
     library used by Apache 2. This library contains a vulnerability in
     the apr_psprintf() function which could be used to make apache
     reference invalid memory.
     
     The most immediate impact of this vulnerability is a Denial of
     Service condition. Arbitrary command execution remains a possibility,
     but is deemed to be difficult to achieve outside a controlled
     environment.
     
     The packages provided with this update contain a fix for this
     vulnerability.
     
     2) CAN-2003-0189[4]
     A problem with the build configuration scripts caused the Apache
     basic authentication module to not be thread-safe. Systems running a
     threaded server would then be vulnerable to a Denial of Service
     condition when authenticating users using this module. Apache in
     Conectiva Linux 9 is *not* vulnerable to this issue because it is not
     built with threads support. However, the packages available through
     this update have been patched to fix this problem to allow users to
     recompile Apache with threads support in the event they choose to do
     so.

    SOLUTION
     It is recommended that all Apache users upgrade their packages.
     
     IMPORTANT: it is necessary to manually restart the httpd server after
     upgrading the packages. In order to do this, execute the following as
     root:
     
     service apache stop
     
     (wait a few seconds and check with "ps ax|grep httpd" if there are
     any httpd processes running. On a busy webserver this could take a
     little longer)
     
     service apache start
     
     
     REFERENCES
     1. http://httpd.apache.org/
     2. http://www.apache.org/dist/httpd/Announcement2.html
     3. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0245
     4. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0189
     5. http://www.idefense.com/advisory/05.30.03.txt

    UPDATED PACKAGES
    ftp://atualizacoes.conectiva.com.br/9/SRPMS/apache-2.0.45-28790U90_2cl.src.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-devel-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-doc-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-htpasswd-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-static-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr0-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_auth_ldap-2.0.45-28790U90_2cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_dav-2.0.45-28790U90_2cl.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 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

    - -------------------------------------------------------------------------
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