[CLA-2005:948] Conectiva Security Announcement - squid

From: Conectiva Updates (secure_at_conectiva.com.br)
Date: 04/27/05

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    Date: Wed, 27 Apr 2005 14:19:50 -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 : squid
    SUMMARY : Fixes for multiple squid vulnerabilities
    DATE : 2005-04-27 14:19:00
    ID : CLA-2005:948
    RELEVANT
    RELEASES : 9, 10

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

    DESCRIPTION
     Squid[1] is a full-featured web proxy cache.
     
     This announcement upgrades Squid from 2.5STABLE5 to 2.5STABLE9 in
     order to fix bug #13718[2] and also fixes the two following
     vulnerabilities:
     
     1.Unexpected access control results on configuration errors[3]
       On configuration errors involving wrongly defined or missing acls
     the http_access results may be different than expected, possibly
     allowing more access than intended. This patch makes such
     configuration errors a fatal error, preventing the service from
     starting until the access control configuration errors have been
     corrected.
     
     2.Race condition related to Set-Cookie header[4]
       A race window has been discovered where Set-Cookie headers may leak
     to another users if the requested server relies on the old (obsolete
     since 1997) Netscape Set-Cookie specifications in how caches should
     handle the Set-Cookie header on otherwise cacheable content.

    SOLUTION
     It is recommended that all squid users upgrade to the latest
     packages. This update will automatically restart the service if it is
     already running.
     
     
     REFERENCES
     1.http://www.squid-cache.org/
     2.http://bugzilla.conectiva.com.br/show_bug.cgi?id=13718
     3.http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-acl_error
     4.http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-setcookie

    UPDATED PACKAGES
    ftp://atualizacoes.conectiva.com.br/10/SRPMS/squid-2.5.5-77559U10_10cl.src.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-2.5.5-77559U10_10cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-auth-2.5.5-77559U10_10cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-extra-templates-2.5.5-77559U10_10cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/SRPMS/squid-2.5.5-77559U90_12cl.src.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-2.5.5-77559U90_12cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-auth-2.5.5-77559U90_12cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-extra-templates-2.5.5-77559U90_12cl.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

    - -------------------------------------------------------------------------
    All our advisories and generic update instructions can be viewed at
    http://distro.conectiva.com.br/atualizacoes/?idioma=en

    - -------------------------------------------------------------------------
    Copyright (c) 2004 Conectiva Inc.
    http://www.conectiva.com

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