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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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Gentoo Linux Security Advisory                           GLSA 200408-26
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: zlib: Denial of service vulnerability
      Date: August 27, 2004
      Bugs: #61749
        ID: 200408-26

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Synopsis
========

The zlib library contains a Denial of Service vulnerability.

Background
==========

zlib is a general-purpose data-compression library.

Affected packages
=================

    -------------------------------------------------------------------
     Package        /   Vulnerable   /                      Unaffected
    -------------------------------------------------------------------
  1  sys-libs/zlib      <= 1.2.1-r2                        >= 1.2.1-r3

Description
===========

zlib contains a bug in the handling of errors in the "inflate()" and
"inflateBack()" functions.

Impact
======

An attacker could exploit this vulnerability to launch a Denial of
Service attack on any application using the zlib library.

Workaround
==========

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of zlib.

Resolution
==========

All zlib users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=sys-libs/zlib-1.2.1-r3"
    # emerge ">=sys-libs/zlib-1.2.1-r3"

You should also run revdep-rebuild to rebuild any packages that depend
on older versions of zlib :

    # revdep-rebuild

References
==========

  [ 1 ] OpenPKG-SA-2004.038-zlib
        http://www.openpkg.org/security/OpenPKG-SA-2004.038-zlib.html

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200408-26.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0
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Version: GnuPG v1.2.4 (GNU/Linux)

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