[CLA-2004:865] Conectiva Security Announcement - zlib

From: Conectiva Updates (secure_at_conectiva.com.br)
Date: 09/13/04

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    Date: Mon, 13 Sep 2004 12:11:21 -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 : zlib
    SUMMARY : Fix for denial of service vulnerabilities
    DATE : 2004-09-13 12:11:00
    ID : CLA-2004:865
    RELEVANT
    RELEASES : 10

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

    DESCRIPTION
     "zlib"[1] is a compression library used by several programs.
     
     Due to a Debian bug report[2], a denial of service vulnerability[2]
     was discovered in the zlib compression library versions 1.2.x, in the
     inflate() and inflateBack() functions. An attacker could exploit
     this vulnerability to launch a denial of service attack on any
     application using the zlib library. Older versions of zlib are not
     affected.

    SOLUTION
     It is recommended that all Conectiva Linux users upgrade their
     packages.
     
     IMPORTANT: all applications linked against zlib must be restarted
     after the upgrade in order to close the vulnerabilities.
     
     
     REFERENCES
     1.http://www.gzip.org/zlib/
     2.http://bugs.debian.org/252253
     3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0797

    UPDATED PACKAGES
    ftp://atualizacoes.conectiva.com.br/10/SRPMS/libz1-1.2.1-47972U10_1cl.src.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/libz-devel-1.2.1-47972U10_1cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/libz-devel-static-1.2.1-47972U10_1cl.i386.rpm
    ftp://atualizacoes.conectiva.com.br/10/RPMS/libz1-1.2.1-47972U10_1cl.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

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